diff --git a/.env.dist b/.env.dist
index 8894555..3063ff5 100644
--- a/.env.dist
+++ b/.env.dist
@@ -10,3 +10,21 @@ DATABASE_URL="postgresql://mobicoop:mobicoop@v3-db:5432/mobicoop?schema=configur
 MESSAGE_BROKER_URI=amqp://v3-broker:5672
 MESSAGE_BROKER_EXCHANGE=mobicoop
 MESSAGE_BROKER_EXCHANGE_DURABILITY=true
+
+
+# DEFAULT CONFIGURATION
+
+# CARPOOL
+# default carpool departure time margin (in seconds)
+DEPARTURE_TIME_MARGIN=900
+# default role
+ROLE=passenger
+# seats proposed as driver / requested as passenger
+SEATS_PROPOSED=3
+SEATS_REQUESTED=1
+# accept only same frequency requests
+STRICT_FREQUENCY=false
+
+# PAGINATION
+# number of results per page
+PER_PAGE=10
diff --git a/package-lock.json b/package-lock.json
index 9bcdb52..a4e755d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2687,6 +2687,12 @@
         "pretty-format": "^29.0.0"
       }
     },
+    "node_modules/@types/js-yaml": {
+      "version": "4.0.8",
+      "resolved": "https://registry.npmjs.org/@types/js-yaml/-/js-yaml-4.0.8.tgz",
+      "integrity": "sha512-m6jnPk1VhlYRiLFm3f8X9Uep761f+CK8mHyS65LutH2OhmBF0BeMEjHgg05usH8PLZMWWc/BUR9RPmkvpWnyRA==",
+      "dev": true
+    },
     "node_modules/@types/json-schema": {
       "version": "7.0.14",
       "resolved": "https://registry.npmjs.org/@types/json-schema/-/json-schema-7.0.14.tgz",
@@ -5559,20 +5565,6 @@
       "integrity": "sha512-OO0pH2lK6a0hZnAdau5ItzHPI6pUlvI7jMVnxUQRtw4owF2wk8lOSabtGDCTP4Ggrg2MbGnWO9X8K1t4+fGMDw==",
       "dev": true
     },
-    "node_modules/fsevents": {
-      "version": "2.3.3",
-      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.3.tgz",
-      "integrity": "sha512-5xoDfX+fL7faATnagmWPpbFtwh/R77WmMMqqHGS65C3vvB0YHrgF+B1YmZ3441tMj5n63k0212XNoJwzlhffQw==",
-      "dev": true,
-      "hasInstallScript": true,
-      "optional": true,
-      "os": [
-        "darwin"
-      ],
-      "engines": {
-        "node": "^8.16.0 || ^10.6.0 || >=11.0.0"
-      }
-    },
     "node_modules/function-bind": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.2.tgz",
diff --git a/src/app.module.ts b/src/app.module.ts
index a729c4b..8c0e669 100644
--- a/src/app.module.ts
+++ b/src/app.module.ts
@@ -16,10 +16,24 @@ import { MESSAGE_PUBLISHER } from '@modules/messager/messager.di-tokens';
 import { CONFIGURATION_REPOSITORY } from '@modules/configuration/configuration.di-tokens';
 import { ConfigurationModule } from '@modules/configuration/configuration.module';
 import { EventEmitterModule } from '@nestjs/event-emitter';
+import brokerConfig from './config/broker.config';
+import carpoolConfig from './config/carpool.config';
+import databaseConfig from './config/database.config';
+import paginationConfig from './config/pagination.config';
+import serviceConfig from './config/service.config';
 
 @Module({
   imports: [
-    ConfigModule.forRoot({ isGlobal: true }),
+    ConfigModule.forRoot({
+      isGlobal: true,
+      load: [
+        brokerConfig,
+        carpoolConfig,
+        databaseConfig,
+        paginationConfig,
+        serviceConfig,
+      ],
+    }),
     EventEmitterModule.forRoot(),
     HealthModule.forRootAsync({
       imports: [ConfigurationModule, MessagerModule],
diff --git a/src/config/broker.config.ts b/src/config/broker.config.ts
new file mode 100644
index 0000000..941a54e
--- /dev/null
+++ b/src/config/broker.config.ts
@@ -0,0 +1,11 @@
+import { registerAs } from '@nestjs/config';
+
+export default registerAs('broker', () => ({
+  uri: process.env.MESSAGE_BROKER_URI ?? 'amqp://v3-broker:5672',
+  exchange: process.env.MESSAGE_BROKER_EXCHANGE ?? 'mobicoop',
+  durability: process.env.MESSAGE_BROKER_EXCHANGE_DURABILITY
+    ? process.env.MESSAGE_BROKER_EXCHANGE_DURABILITY === 'false'
+      ? false
+      : true
+    : true,
+}));
diff --git a/src/config/carpool.config.ts b/src/config/carpool.config.ts
new file mode 100644
index 0000000..51f54bb
--- /dev/null
+++ b/src/config/carpool.config.ts
@@ -0,0 +1,19 @@
+import { registerAs } from '@nestjs/config';
+
+export default registerAs('carpool', () => ({
+  departureTimeMargin: process.env.DEPARTURE_TIME_MARGIN
+    ? parseInt(process.env.DEPARTURE_TIME_MARGIN, 10)
+    : 900,
+  role: process.env.ROLE ?? 'passenger',
+  seatsProposed: process.env.SEATS_PROPOSED
+    ? parseInt(process.env.SEATS_PROPOSED, 10)
+    : 3,
+  seatsRequested: process.env.SEATS_REQUESTED
+    ? parseInt(process.env.SEATS_REQUESTED, 10)
+    : 1,
+  strictFrequency: process.env.STRICT_FREQUENCY
+    ? process.env.STRICT_FREQUENCY === 'false'
+      ? false
+      : true
+    : false,
+}));
diff --git a/src/config/database.config.ts b/src/config/database.config.ts
new file mode 100644
index 0000000..116843a
--- /dev/null
+++ b/src/config/database.config.ts
@@ -0,0 +1,7 @@
+import { registerAs } from '@nestjs/config';
+
+export default registerAs('database', () => ({
+  url:
+    process.env.DATABASE_URL ??
+    'postgresql://mobicoop:mobicoop@v3-db:5432/mobicoop?schema=configuration',
+}));
diff --git a/src/config/pagination.config.ts b/src/config/pagination.config.ts
new file mode 100644
index 0000000..e7b9ded
--- /dev/null
+++ b/src/config/pagination.config.ts
@@ -0,0 +1,5 @@
+import { registerAs } from '@nestjs/config';
+
+export default registerAs('pagination', () => ({
+  perPage: process.env.PER_PAGE ? parseInt(process.env.PER_PAGE, 10) : 10,
+}));
diff --git a/src/config/service.config.ts b/src/config/service.config.ts
new file mode 100644
index 0000000..b562850
--- /dev/null
+++ b/src/config/service.config.ts
@@ -0,0 +1,8 @@
+import { registerAs } from '@nestjs/config';
+
+export default registerAs('service', () => ({
+  url: process.env.SERVICE_URL ?? '0.0.0.0',
+  port: process.env.SERVICE_PORT
+    ? parseInt(process.env.SERVICE_PORT, 10)
+    : 5003,
+}));
diff --git a/src/modules/configuration/configuration.mapper.ts b/src/modules/configuration/configuration.mapper.ts
index 745f8f9..86767c0 100644
--- a/src/modules/configuration/configuration.mapper.ts
+++ b/src/modules/configuration/configuration.mapper.ts
@@ -6,6 +6,10 @@ import {
   ConfigurationWriteModel,
 } from './infrastructure/configuration.repository';
 import { ConfigurationResponseDto } from './interface/dtos/configuration.response.dto';
+import {
+  ConfigurationDomain,
+  ConfigurationType,
+} from './core/domain/configuration.types';
 
 /**
  * Mapper constructs objects that are used in different layers:
@@ -28,9 +32,10 @@ export class ConfigurationMapper
     const copy = entity.getProps();
     const record: ConfigurationWriteModel = {
       uuid: entity.id,
-      domain: copy.domain,
-      key: copy.key,
+      domain: copy.identifier.domain,
+      key: copy.identifier.key,
       value: copy.value,
+      type: copy.type,
     };
     return record;
   };
@@ -41,9 +46,12 @@ export class ConfigurationMapper
       createdAt: new Date(record.createdAt),
       updatedAt: new Date(record.updatedAt),
       props: {
-        domain: record.domain,
-        key: record.key,
+        identifier: {
+          domain: record.domain as ConfigurationDomain,
+          key: record.key,
+        },
         value: record.value,
+        type: record.type as ConfigurationType,
       },
     });
     return entity;
@@ -52,9 +60,10 @@ export class ConfigurationMapper
   toResponse = (entity: ConfigurationEntity): ConfigurationResponseDto => {
     const props = entity.getProps();
     const response = new ConfigurationResponseDto(entity);
-    response.domain = props.domain;
-    response.key = props.key;
+    response.domain = props.identifier.domain;
+    response.key = props.identifier.key;
     response.value = props.value;
+    response.type = props.type;
     return response;
   };
 }
diff --git a/src/modules/configuration/core/application/commands/set-configuration/set-configuration.service.ts b/src/modules/configuration/core/application/commands/set-configuration/set-configuration.service.ts
index 6fd351d..f1faa3d 100644
--- a/src/modules/configuration/core/application/commands/set-configuration/set-configuration.service.ts
+++ b/src/modules/configuration/core/application/commands/set-configuration/set-configuration.service.ts
@@ -5,6 +5,10 @@ import { SetConfigurationCommand } from './set-configuration.command';
 import { CONFIGURATION_REPOSITORY } from '@modules/configuration/configuration.di-tokens';
 import { ConfigurationRepositoryPort } from '../../ports/configuration.repository.port';
 import { ConfigurationEntity } from '@modules/configuration/core/domain/configuration.entity';
+import {
+  ConfigurationDomain,
+  ConfigurationType,
+} from '@modules/configuration/core/domain/configuration.types';
 
 @CommandHandler(SetConfigurationCommand)
 export class SetConfigurationService implements ICommandHandler {
@@ -29,7 +33,14 @@ export class SetConfigurationService implements ICommandHandler {
     } catch (error: any) {
       if (error instanceof NotFoundException) {
         try {
-          const newConfiguration = ConfigurationEntity.create(command);
+          const newConfiguration = ConfigurationEntity.create({
+            identifier: {
+              domain: command.domain as ConfigurationDomain,
+              key: command.key,
+            },
+            value: command.value,
+            type: ConfigurationType.STRING,
+          });
           await this.repository.insert(newConfiguration);
           return newConfiguration.id;
         } catch (error: any) {
diff --git a/src/modules/configuration/core/application/event-handlers/publish-message-when-configuration-is-deleted.domain-event-handler.ts b/src/modules/configuration/core/application/event-handlers/publish-message-when-configuration-is-deleted.domain-event-handler.ts
index 6f01343..b7c0f65 100644
--- a/src/modules/configuration/core/application/event-handlers/publish-message-when-configuration-is-deleted.domain-event-handler.ts
+++ b/src/modules/configuration/core/application/event-handlers/publish-message-when-configuration-is-deleted.domain-event-handler.ts
@@ -21,8 +21,8 @@ export class PublishMessageWhenConfigurationIsDeletedDomainEventHandler {
     const configurationDeletedIntegrationEvent =
       new ConfigurationDeletedIntegrationEvent({
         id: event.aggregateId,
-        domain: event.domain,
-        key: event.key,
+        domain: event.identifier.domain,
+        key: event.identifier.key,
         metadata: event.metadata,
       });
     this.messagePublisher.publish(
diff --git a/src/modules/configuration/core/application/event-handlers/publish-message-when-configuration-is-set.domain-event-handler.ts b/src/modules/configuration/core/application/event-handlers/publish-message-when-configuration-is-set.domain-event-handler.ts
index 0e100ce..4a8672a 100644
--- a/src/modules/configuration/core/application/event-handlers/publish-message-when-configuration-is-set.domain-event-handler.ts
+++ b/src/modules/configuration/core/application/event-handlers/publish-message-when-configuration-is-set.domain-event-handler.ts
@@ -18,8 +18,8 @@ export class PublishMessageWhenConfigurationIsSetDomainEventHandler {
     const configurationSetIntegrationEvent =
       new ConfigurationSetIntegrationEvent({
         id: event.aggregateId,
-        domain: event.domain,
-        key: event.key,
+        domain: event.identifier.domain,
+        key: event.identifier.key,
         value: event.value,
         metadata: event.metadata,
       });
diff --git a/src/modules/configuration/core/domain/configuration.default.ts b/src/modules/configuration/core/domain/configuration.default.ts
new file mode 100644
index 0000000..e933302
--- /dev/null
+++ b/src/modules/configuration/core/domain/configuration.default.ts
@@ -0,0 +1,32 @@
+import {
+  ConfigurationDomain,
+  ConfigurationType,
+  ConfigurationItems,
+} from './configuration.types';
+
+export const configurationItems: ConfigurationItems = {
+  [ConfigurationDomain.CARPOOL]: {
+    seatsProposed: {
+      value: '3',
+      type: ConfigurationType.NUMBER,
+    },
+    seatsRequested: {
+      value: '1',
+      type: ConfigurationType.NUMBER,
+    },
+    strictFrequency: {
+      value: 'false',
+      type: ConfigurationType.BOOLEAN,
+    },
+    departureTimeMargin: {
+      value: '900',
+      type: ConfigurationType.NUMBER,
+    },
+    role: {
+      value: 'passenger',
+      type: ConfigurationType.STRING,
+      enum: ['driver', 'passenger'],
+    },
+  },
+  [ConfigurationDomain.USER]: {},
+};
diff --git a/src/modules/configuration/core/domain/configuration.entity.ts b/src/modules/configuration/core/domain/configuration.entity.ts
index d739c0c..3167e78 100644
--- a/src/modules/configuration/core/domain/configuration.entity.ts
+++ b/src/modules/configuration/core/domain/configuration.entity.ts
@@ -18,9 +18,9 @@ export class ConfigurationEntity extends AggregateRoot<ConfigurationProps> {
     configuration.addEvent(
       new ConfigurationSetDomainEvent({
         aggregateId: id,
-        domain: props.domain,
-        key: props.key,
+        identifier: props.identifier,
         value: props.value,
+        type: props.type,
       }),
     );
     return configuration;
@@ -31,9 +31,9 @@ export class ConfigurationEntity extends AggregateRoot<ConfigurationProps> {
     this.addEvent(
       new ConfigurationSetDomainEvent({
         aggregateId: this._id,
-        domain: this.props.domain,
-        key: this.props.key,
+        identifier: this.props.identifier,
         value: props.value,
+        type: this.props.type,
       }),
     );
   }
@@ -42,8 +42,7 @@ export class ConfigurationEntity extends AggregateRoot<ConfigurationProps> {
     this.addEvent(
       new ConfigurationDeletedDomainEvent({
         aggregateId: this.id,
-        domain: this.props.domain,
-        key: this.props.key,
+        identifier: this.props.identifier,
       }),
     );
   }
diff --git a/src/modules/configuration/core/domain/configuration.types.ts b/src/modules/configuration/core/domain/configuration.types.ts
index 9f4872a..28b2f42 100644
--- a/src/modules/configuration/core/domain/configuration.types.ts
+++ b/src/modules/configuration/core/domain/configuration.types.ts
@@ -1,23 +1,48 @@
 // All properties that a Configuration has
 export interface ConfigurationProps {
-  domain: string;
-  key: string;
-  value: string;
+  identifier: ConfigurationIdentifier;
+  value: ConfigurationValue;
+  type: ConfigurationType;
 }
 
 // Properties that are needed for a Configuration creation
 export interface CreateConfigurationProps {
-  domain: string;
-  key: string;
-  value: string;
+  identifier: ConfigurationIdentifier;
+  value: ConfigurationValue;
+  type: ConfigurationType;
 }
 
 export interface UpdateConfigurationProps {
-  value: string;
+  value: ConfigurationValue;
 }
 
-export enum Domain {
-  AD = 'AD',
-  MATCHER = 'MATCHER',
+export enum ConfigurationDomain {
+  CARPOOL = 'CARPOOL',
   USER = 'USER',
 }
+
+export enum ConfigurationType {
+  BOOLEAN = 'BOOLEAN',
+  NUMBER = 'NUMBER',
+  STRING = 'STRING',
+}
+
+export type ConfigurationIdentifier = {
+  domain: ConfigurationDomain;
+  key: ConfigurationKey;
+};
+
+export type ConfigurationKey = string;
+export type ConfigurationValue = string;
+
+export type ConfigurationItems = Record<
+  ConfigurationDomain,
+  Record<
+    ConfigurationKey,
+    {
+      value: ConfigurationValue;
+      type: ConfigurationType;
+      enum?: Array<string>;
+    }
+  >
+>;
diff --git a/src/modules/configuration/core/domain/events/configuration-deleted.domain-event.ts b/src/modules/configuration/core/domain/events/configuration-deleted.domain-event.ts
index 6baab37..658e079 100644
--- a/src/modules/configuration/core/domain/events/configuration-deleted.domain-event.ts
+++ b/src/modules/configuration/core/domain/events/configuration-deleted.domain-event.ts
@@ -1,12 +1,11 @@
 import { DomainEvent, DomainEventProps } from '@mobicoop/ddd-library';
+import { ConfigurationIdentifier } from '../configuration.types';
 
 export class ConfigurationDeletedDomainEvent extends DomainEvent {
-  readonly domain: string;
-  readonly key: string;
+  readonly identifier: ConfigurationIdentifier;
 
   constructor(props: DomainEventProps<ConfigurationDeletedDomainEvent>) {
     super(props);
-    this.domain = props.domain;
-    this.key = props.key;
+    this.identifier = props.identifier;
   }
 }
diff --git a/src/modules/configuration/core/domain/events/configuration-set.domain-event.ts b/src/modules/configuration/core/domain/events/configuration-set.domain-event.ts
index d9564f4..c9b651e 100644
--- a/src/modules/configuration/core/domain/events/configuration-set.domain-event.ts
+++ b/src/modules/configuration/core/domain/events/configuration-set.domain-event.ts
@@ -1,14 +1,19 @@
 import { DomainEvent, DomainEventProps } from '@mobicoop/ddd-library';
+import {
+  ConfigurationIdentifier,
+  ConfigurationType,
+  ConfigurationValue,
+} from '../configuration.types';
 
 export class ConfigurationSetDomainEvent extends DomainEvent {
-  readonly domain: string;
-  readonly key: string;
-  readonly value: string;
+  readonly identifier: ConfigurationIdentifier;
+  readonly value: ConfigurationValue;
+  readonly type: ConfigurationType;
 
   constructor(props: DomainEventProps<ConfigurationSetDomainEvent>) {
     super(props);
-    this.domain = props.domain;
-    this.key = props.key;
+    this.identifier = props.identifier;
+    this.type = props.type;
     this.value = props.value;
   }
 }
diff --git a/src/modules/configuration/infrastructure/configuration.repository.ts b/src/modules/configuration/infrastructure/configuration.repository.ts
index b77c992..7284f81 100644
--- a/src/modules/configuration/infrastructure/configuration.repository.ts
+++ b/src/modules/configuration/infrastructure/configuration.repository.ts
@@ -17,6 +17,7 @@ export type ConfigurationBaseModel = {
   domain: string;
   key: string;
   value: string;
+  type: string;
 };
 
 export type ConfigurationReadModel = ConfigurationBaseModel & {
diff --git a/src/modules/configuration/interface/dtos/configuration.response.dto.ts b/src/modules/configuration/interface/dtos/configuration.response.dto.ts
index 8b7a7b2..f935c37 100644
--- a/src/modules/configuration/interface/dtos/configuration.response.dto.ts
+++ b/src/modules/configuration/interface/dtos/configuration.response.dto.ts
@@ -4,4 +4,5 @@ export class ConfigurationResponseDto extends ResponseBase {
   domain: string;
   key: string;
   value: string;
+  type: string;
 }
diff --git a/src/modules/configuration/interface/grpc-controllers/dtos/delete-configuration.request.dto.ts b/src/modules/configuration/interface/grpc-controllers/dtos/delete-configuration.request.dto.ts
index 223d8b9..4930d76 100644
--- a/src/modules/configuration/interface/grpc-controllers/dtos/delete-configuration.request.dto.ts
+++ b/src/modules/configuration/interface/grpc-controllers/dtos/delete-configuration.request.dto.ts
@@ -1,10 +1,10 @@
-import { Domain } from '@modules/configuration/core/domain/configuration.types';
+import { ConfigurationDomain } from '@modules/configuration/core/domain/configuration.types';
 import { IsEnum, IsNotEmpty, IsString } from 'class-validator';
 
 export class DeleteConfigurationRequestDto {
-  @IsEnum(Domain)
+  @IsEnum(ConfigurationDomain)
   @IsNotEmpty()
-  domain: Domain;
+  domain: ConfigurationDomain;
 
   @IsString()
   @IsNotEmpty()
diff --git a/src/modules/configuration/interface/grpc-controllers/dtos/get-configuration.request.dto.ts b/src/modules/configuration/interface/grpc-controllers/dtos/get-configuration.request.dto.ts
index 9ae99e8..65aefd6 100644
--- a/src/modules/configuration/interface/grpc-controllers/dtos/get-configuration.request.dto.ts
+++ b/src/modules/configuration/interface/grpc-controllers/dtos/get-configuration.request.dto.ts
@@ -1,10 +1,10 @@
-import { Domain } from '@modules/configuration/core/domain/configuration.types';
+import { ConfigurationDomain } from '@modules/configuration/core/domain/configuration.types';
 import { IsEnum, IsNotEmpty, IsString } from 'class-validator';
 
 export class GetConfigurationRequestDto {
-  @IsEnum(Domain)
+  @IsEnum(ConfigurationDomain)
   @IsNotEmpty()
-  domain: Domain;
+  domain: ConfigurationDomain;
 
   @IsString()
   @IsNotEmpty()
diff --git a/src/modules/configuration/interface/grpc-controllers/dtos/set-configuration.request.dto.ts b/src/modules/configuration/interface/grpc-controllers/dtos/set-configuration.request.dto.ts
index d9cd272..c6a0b80 100644
--- a/src/modules/configuration/interface/grpc-controllers/dtos/set-configuration.request.dto.ts
+++ b/src/modules/configuration/interface/grpc-controllers/dtos/set-configuration.request.dto.ts
@@ -1,10 +1,10 @@
-import { Domain } from '@modules/configuration/core/domain/configuration.types';
+import { ConfigurationDomain } from '@modules/configuration/core/domain/configuration.types';
 import { IsEnum, IsNotEmpty, IsString } from 'class-validator';
 
 export class SetConfigurationRequestDto {
-  @IsEnum(Domain)
+  @IsEnum(ConfigurationDomain)
   @IsNotEmpty()
-  domain: Domain;
+  domain: ConfigurationDomain;
 
   @IsString()
   @IsNotEmpty()
diff --git a/src/modules/configuration/tests/integration/configuration.repository.spec.ts b/src/modules/configuration/tests/integration/configuration.repository.spec.ts
index 832e87a..059b064 100644
--- a/src/modules/configuration/tests/integration/configuration.repository.spec.ts
+++ b/src/modules/configuration/tests/integration/configuration.repository.spec.ts
@@ -6,7 +6,7 @@ import { ConfigurationMapper } from '@modules/configuration/configuration.mapper
 import { ConfigurationEntity } from '@modules/configuration/core/domain/configuration.entity';
 import {
   CreateConfigurationProps,
-  Domain,
+  ConfigurationDomain,
 } from '@modules/configuration/core/domain/configuration.types';
 import { ConfigurationRepository } from '@modules/configuration/infrastructure/configuration.repository';
 import { PrismaService } from '@modules/configuration/infrastructure/prisma.service';
@@ -36,7 +36,7 @@ describe('Configuration Repository', () => {
     for (let i = 0; i < nbToCreate; i++) {
       const configurationToCreate = {
         uuid: getSeed(i, baseUuid.uuid),
-        domain: Domain.AD,
+        domain: ConfigurationDomain.AD,
         key: `key${i}`,
         value: `value${i}`,
         createdAt: '2023-07-24 13:07:05.000',
@@ -98,7 +98,7 @@ describe('Configuration Repository', () => {
     it('should return a configuration', async () => {
       await createConfigurations(1);
       const result = await configurationRepository.findOne({
-        domain: Domain.AD,
+        domain: ConfigurationDomain.AD,
         key: 'key0',
       });
       expect(result.getProps().value).toBe('value0');
@@ -119,7 +119,7 @@ describe('Configuration Repository', () => {
       const beforeCount = await prismaService.configuration.count();
 
       const createConfigurationProps: CreateConfigurationProps = {
-        domain: Domain.AD,
+        domain: ConfigurationDomain.AD,
         key: 'seatsProposed',
         value: '3',
       };
@@ -139,7 +139,7 @@ describe('Configuration Repository', () => {
       await createConfigurations(1);
       const configurationToUpdate: ConfigurationEntity =
         await configurationRepository.findOne({
-          domain: Domain.AD,
+          domain: ConfigurationDomain.AD,
           key: 'key0',
         });
       configurationToUpdate.update({ value: 'newValue' });
@@ -149,7 +149,7 @@ describe('Configuration Repository', () => {
       );
       const result: ConfigurationEntity = await configurationRepository.findOne(
         {
-          domain: Domain.AD,
+          domain: ConfigurationDomain.AD,
           key: 'key0',
         },
       );
@@ -163,7 +163,7 @@ describe('Configuration Repository', () => {
       const beforeCount = await prismaService.configuration.count();
       const configurationToDelete: ConfigurationEntity =
         await configurationRepository.findOne({
-          domain: Domain.AD,
+          domain: ConfigurationDomain.AD,
           key: 'key4',
         });
       await configurationRepository.delete(configurationToDelete);
diff --git a/src/modules/configuration/tests/unit/configuration.mapper.spec.ts b/src/modules/configuration/tests/unit/configuration.mapper.spec.ts
index 83fbb1e..2686aaa 100644
--- a/src/modules/configuration/tests/unit/configuration.mapper.spec.ts
+++ b/src/modules/configuration/tests/unit/configuration.mapper.spec.ts
@@ -1,6 +1,9 @@
 import { ConfigurationMapper } from '@modules/configuration/configuration.mapper';
 import { ConfigurationEntity } from '@modules/configuration/core/domain/configuration.entity';
-import { Domain } from '@modules/configuration/core/domain/configuration.types';
+import {
+  ConfigurationDomain,
+  ConfigurationType,
+} from '@modules/configuration/core/domain/configuration.types';
 import {
   ConfigurationReadModel,
   ConfigurationWriteModel,
@@ -12,9 +15,12 @@ const now = new Date('2023-06-21 06:00:00');
 const configurationEntity: ConfigurationEntity = new ConfigurationEntity({
   id: 'c160cf8c-f057-4962-841f-3ad68346df44',
   props: {
-    domain: Domain.AD,
-    key: 'seatsProposed',
+    identifier: {
+      domain: ConfigurationDomain.CARPOOL,
+      key: 'seatsProposed',
+    },
     value: '3',
+    type: ConfigurationType.NUMBER,
   },
   createdAt: now,
   updatedAt: now,
@@ -24,6 +30,7 @@ const configurationReadModel: ConfigurationReadModel = {
   domain: 'AD',
   key: 'seatsProposed',
   value: '4',
+  type: 'NUMBER',
   createdAt: now,
   updatedAt: now,
 };
diff --git a/src/modules/configuration/tests/unit/core/configuration.entity.spec.ts b/src/modules/configuration/tests/unit/core/configuration.entity.spec.ts
index 6723472..0647071 100644
--- a/src/modules/configuration/tests/unit/core/configuration.entity.spec.ts
+++ b/src/modules/configuration/tests/unit/core/configuration.entity.spec.ts
@@ -1,16 +1,20 @@
 import { ConfigurationEntity } from '@modules/configuration/core/domain/configuration.entity';
 import {
   CreateConfigurationProps,
-  Domain,
+  ConfigurationDomain,
   UpdateConfigurationProps,
+  ConfigurationType,
 } from '@modules/configuration/core/domain/configuration.types';
 import { ConfigurationDeletedDomainEvent } from '@modules/configuration/core/domain/events/configuration-deleted.domain-event';
 import { ConfigurationSetDomainEvent } from '@modules/configuration/core/domain/events/configuration-set.domain-event';
 
 const createConfigurationProps: CreateConfigurationProps = {
-  domain: Domain.AD,
-  key: 'seatsProposed',
+  identifier: {
+    domain: ConfigurationDomain.CARPOOL,
+    key: 'seatsProposed',
+  },
   value: '3',
+  type: ConfigurationType.NUMBER,
 };
 
 const updateConfigurationProps: UpdateConfigurationProps = {
diff --git a/src/modules/configuration/tests/unit/core/delete-configuration.service.spec.ts b/src/modules/configuration/tests/unit/core/delete-configuration.service.spec.ts
index 179786b..4236ba2 100644
--- a/src/modules/configuration/tests/unit/core/delete-configuration.service.spec.ts
+++ b/src/modules/configuration/tests/unit/core/delete-configuration.service.spec.ts
@@ -1,12 +1,12 @@
 import { CONFIGURATION_REPOSITORY } from '@modules/configuration/configuration.di-tokens';
 import { DeleteConfigurationCommand } from '@modules/configuration/core/application/commands/delete-configuration/delete-configuration.command';
 import { DeleteConfigurationService } from '@modules/configuration/core/application/commands/delete-configuration/delete-configuration.service';
-import { Domain } from '@modules/configuration/core/domain/configuration.types';
+import { ConfigurationDomain } from '@modules/configuration/core/domain/configuration.types';
 import { DeleteConfigurationRequestDto } from '@modules/configuration/interface/grpc-controllers/dtos/delete-configuration.request.dto';
 import { Test, TestingModule } from '@nestjs/testing';
 
 const deleteConfigurationRequest: DeleteConfigurationRequestDto = {
-  domain: Domain.AD,
+  domain: ConfigurationDomain.CARPOOL,
   key: 'seatsProposed',
 };
 
diff --git a/src/modules/configuration/tests/unit/core/get-configuration.query-handler.spec.ts b/src/modules/configuration/tests/unit/core/get-configuration.query-handler.spec.ts
index 3af9582..dd2384f 100644
--- a/src/modules/configuration/tests/unit/core/get-configuration.query-handler.spec.ts
+++ b/src/modules/configuration/tests/unit/core/get-configuration.query-handler.spec.ts
@@ -1,6 +1,9 @@
 import { Test, TestingModule } from '@nestjs/testing';
 import { ConfigurationEntity } from '@modules/configuration/core/domain/configuration.entity';
-import { Domain } from '@modules/configuration/core/domain/configuration.types';
+import {
+  ConfigurationDomain,
+  ConfigurationType,
+} from '@modules/configuration/core/domain/configuration.types';
 import { GetConfigurationQueryHandler } from '@modules/configuration/core/application/queries/get-configuration/get-configuration.query-handler';
 import { CONFIGURATION_REPOSITORY } from '@modules/configuration/configuration.di-tokens';
 import { GetConfigurationQuery } from '@modules/configuration/core/application/queries/get-configuration/get-configuration.query';
@@ -9,9 +12,12 @@ const now = new Date('2023-06-21 06:00:00');
 const configuration: ConfigurationEntity = new ConfigurationEntity({
   id: 'c160cf8c-f057-4962-841f-3ad68346df44',
   props: {
-    domain: Domain.AD,
-    key: 'seatsProposed',
+    identifier: {
+      domain: ConfigurationDomain.CARPOOL,
+      key: 'seatsProposed',
+    },
     value: '3',
+    type: ConfigurationType.NUMBER,
   },
   createdAt: now,
   updatedAt: now,
@@ -47,7 +53,7 @@ describe('Get Configuration Query Handler', () => {
   describe('execution', () => {
     it('should return a configuration item', async () => {
       const getConfigurationQuery = new GetConfigurationQuery(
-        Domain.AD,
+        ConfigurationDomain.CARPOOL,
         'seatsProposed',
       );
       const configuration: ConfigurationEntity =
diff --git a/src/modules/configuration/tests/unit/core/propagate-configurations.service.spec.ts b/src/modules/configuration/tests/unit/core/propagate-configurations.service.spec.ts
index 000e6a3..16d1442 100644
--- a/src/modules/configuration/tests/unit/core/propagate-configurations.service.spec.ts
+++ b/src/modules/configuration/tests/unit/core/propagate-configurations.service.spec.ts
@@ -1,5 +1,8 @@
 import { Test, TestingModule } from '@nestjs/testing';
-import { Domain } from '@modules/configuration/core/domain/configuration.types';
+import {
+  ConfigurationDomain,
+  ConfigurationType,
+} from '@modules/configuration/core/domain/configuration.types';
 import {
   CONFIGURATION_MESSAGE_PUBLISHER,
   CONFIGURATION_REPOSITORY,
@@ -17,9 +20,12 @@ const configurationEntities = [
   new ConfigurationEntity({
     id: '047a6ecf-23d4-4d3e-877c-3225d560a8da',
     props: {
-      domain: Domain.AD,
-      key: 'seatsProposed',
+      identifier: {
+        domain: ConfigurationDomain.CARPOOL,
+        key: 'seatsProposed',
+      },
       value: '3',
+      type: ConfigurationType.NUMBER,
     },
     createdAt: new Date('2023-10-23T07:00:00Z'),
     updatedAt: new Date('2023-10-23T07:00:00Z'),
@@ -27,9 +33,12 @@ const configurationEntities = [
   new ConfigurationEntity({
     id: '047a6ecf-23d4-4d3e-877c-3225d560a8db',
     props: {
-      domain: Domain.AD,
-      key: 'seatsRequested',
+      identifier: {
+        domain: ConfigurationDomain.CARPOOL,
+        key: 'seatsRequested',
+      },
       value: '1',
+      type: ConfigurationType.NUMBER,
     },
     createdAt: new Date('2023-10-23T07:00:00Z'),
     updatedAt: new Date('2023-10-23T07:00:00Z'),
@@ -40,14 +49,16 @@ const mockConfigurationMapper = {
   toResponse: jest
     .fn()
     .mockImplementationOnce(() => ({
-      domain: Domain.AD,
+      domain: ConfigurationDomain.CARPOOL,
       key: 'seatsProposed',
       value: '3',
+      type: ConfigurationType.NUMBER,
     }))
     .mockImplementationOnce(() => ({
-      domain: Domain.AD,
+      domain: ConfigurationDomain.CARPOOL,
       key: 'seatsRequested',
       value: '1',
+      type: ConfigurationType.NUMBER,
     })),
 };
 
@@ -93,7 +104,7 @@ describe('Propagate Configurations Service', () => {
       expect(mockMessagePublisher.publish).toHaveBeenCalledTimes(1);
       expect(mockMessagePublisher.publish).toHaveBeenCalledWith(
         CONFIGURATION_PROPAGATED_ROUTING_KEY,
-        '[{"domain":"AD","key":"seatsProposed","value":"3"},{"domain":"AD","key":"seatsRequested","value":"1"}]',
+        '[{"domain":"CARPOOL","key":"seatsProposed","value":"3","type":"NUMBER"},{"domain":"CARPOOL","key":"seatsRequested","value":"1","type":"NUMBER"}]',
       );
     });
   });
diff --git a/src/modules/configuration/tests/unit/core/publish-message-when-configuration-is-deleted.domain-event-handler.spec.ts b/src/modules/configuration/tests/unit/core/publish-message-when-configuration-is-deleted.domain-event-handler.spec.ts
index 377cd82..46f350c 100644
--- a/src/modules/configuration/tests/unit/core/publish-message-when-configuration-is-deleted.domain-event-handler.spec.ts
+++ b/src/modules/configuration/tests/unit/core/publish-message-when-configuration-is-deleted.domain-event-handler.spec.ts
@@ -1,6 +1,6 @@
 import { CONFIGURATION_MESSAGE_PUBLISHER } from '@modules/configuration/configuration.di-tokens';
 import { PublishMessageWhenConfigurationIsDeletedDomainEventHandler } from '@modules/configuration/core/application/event-handlers/publish-message-when-configuration-is-deleted.domain-event-handler';
-import { Domain } from '@modules/configuration/core/domain/configuration.types';
+import { ConfigurationDomain } from '@modules/configuration/core/domain/configuration.types';
 import { ConfigurationDeletedDomainEvent } from '@modules/configuration/core/domain/events/configuration-deleted.domain-event';
 import { Test, TestingModule } from '@nestjs/testing';
 import { CONFIGURATION_DELETED_ROUTING_KEY } from '@src/app.constants';
@@ -33,8 +33,10 @@ describe('Publish message when configuration is deleted domain event handler', (
     jest.spyOn(mockMessagePublisher, 'publish');
     const configurationDeletedDomainEvent: ConfigurationDeletedDomainEvent = {
       id: 'some-domain-event-id',
-      domain: Domain.AD,
-      key: 'seatsProposed',
+      identifier: {
+        domain: ConfigurationDomain.CARPOOL,
+        key: 'seatsProposed',
+      },
       aggregateId: 'some-aggregate-id',
       metadata: {
         timestamp: new Date('2023-06-28T05:00:00Z').getTime(),
@@ -50,7 +52,7 @@ describe('Publish message when configuration is deleted domain event handler', (
     expect(mockMessagePublisher.publish).toHaveBeenCalledTimes(1);
     expect(mockMessagePublisher.publish).toHaveBeenCalledWith(
       CONFIGURATION_DELETED_ROUTING_KEY,
-      '{"id":"some-aggregate-id","metadata":{"correlationId":"some-correlation-id","timestamp":1687928400000},"domain":"AD","key":"seatsProposed"}',
+      '{"id":"some-aggregate-id","metadata":{"correlationId":"some-correlation-id","timestamp":1687928400000},"domain":"CARPOOL","key":"seatsProposed"}',
     );
   });
 });
diff --git a/src/modules/configuration/tests/unit/core/publish-message-when-configuration-is-set.domain-event-handler.spec.ts b/src/modules/configuration/tests/unit/core/publish-message-when-configuration-is-set.domain-event-handler.spec.ts
index fe41262..e6cb4c2 100644
--- a/src/modules/configuration/tests/unit/core/publish-message-when-configuration-is-set.domain-event-handler.spec.ts
+++ b/src/modules/configuration/tests/unit/core/publish-message-when-configuration-is-set.domain-event-handler.spec.ts
@@ -1,6 +1,9 @@
 import { CONFIGURATION_MESSAGE_PUBLISHER } from '@modules/configuration/configuration.di-tokens';
 import { PublishMessageWhenConfigurationIsSetDomainEventHandler } from '@modules/configuration/core/application/event-handlers/publish-message-when-configuration-is-set.domain-event-handler';
-import { Domain } from '@modules/configuration/core/domain/configuration.types';
+import {
+  ConfigurationDomain,
+  ConfigurationType,
+} from '@modules/configuration/core/domain/configuration.types';
 import { ConfigurationSetDomainEvent } from '@modules/configuration/core/domain/events/configuration-set.domain-event';
 import { Test, TestingModule } from '@nestjs/testing';
 import { CONFIGURATION_SET_ROUTING_KEY } from '@src/app.constants';
@@ -34,8 +37,11 @@ describe('Publish message when configuration is set domain event handler', () =>
     const configurationSetDomainEvent: ConfigurationSetDomainEvent = {
       id: 'some-domain-event-id',
       aggregateId: 'some-aggregate-id',
-      domain: Domain.AD,
-      key: 'seatsProposed',
+      identifier: {
+        domain: ConfigurationDomain.CARPOOL,
+        key: 'seatsProposed',
+      },
+      type: ConfigurationType.NUMBER,
       value: '3',
       metadata: {
         timestamp: new Date('2023-06-28T05:00:00Z').getTime(),
@@ -51,7 +57,7 @@ describe('Publish message when configuration is set domain event handler', () =>
     expect(mockMessagePublisher.publish).toHaveBeenCalledTimes(1);
     expect(mockMessagePublisher.publish).toHaveBeenCalledWith(
       CONFIGURATION_SET_ROUTING_KEY,
-      '{"id":"some-aggregate-id","metadata":{"correlationId":"some-correlation-id","timestamp":1687928400000},"domain":"AD","key":"seatsProposed","value":"3"}',
+      '{"id":"some-aggregate-id","metadata":{"correlationId":"some-correlation-id","timestamp":1687928400000},"domain":"CARPOOL","key":"seatsProposed","value":"3"}',
     );
   });
 });
diff --git a/src/modules/configuration/tests/unit/core/set-configuration.service.spec.ts b/src/modules/configuration/tests/unit/core/set-configuration.service.spec.ts
index 72ab2c7..d4b4f38 100644
--- a/src/modules/configuration/tests/unit/core/set-configuration.service.spec.ts
+++ b/src/modules/configuration/tests/unit/core/set-configuration.service.spec.ts
@@ -1,14 +1,17 @@
 import { Test, TestingModule } from '@nestjs/testing';
 import { AggregateID, NotFoundException } from '@mobicoop/ddd-library';
 import { SetConfigurationRequestDto } from '@modules/configuration/interface/grpc-controllers/dtos/set-configuration.request.dto';
-import { Domain } from '@modules/configuration/core/domain/configuration.types';
+import {
+  ConfigurationDomain,
+  ConfigurationType,
+} from '@modules/configuration/core/domain/configuration.types';
 import { SetConfigurationService } from '@modules/configuration/core/application/commands/set-configuration/set-configuration.service';
 import { CONFIGURATION_REPOSITORY } from '@modules/configuration/configuration.di-tokens';
 import { SetConfigurationCommand } from '@modules/configuration/core/application/commands/set-configuration/set-configuration.command';
 import { ConfigurationEntity } from '@modules/configuration/core/domain/configuration.entity';
 
 const setConfigurationRequest: SetConfigurationRequestDto = {
-  domain: Domain.AD,
+  domain: ConfigurationDomain.CARPOOL,
   key: 'seatsProposed',
   value: '3',
 };
@@ -16,8 +19,11 @@ const setConfigurationRequest: SetConfigurationRequestDto = {
 const existingConfigurationEntity = new ConfigurationEntity({
   id: '047a6ecf-23d4-4d3e-877c-3225d560a8da',
   props: {
-    domain: Domain.AD,
-    key: 'seatsProposed',
+    identifier: {
+      domain: ConfigurationDomain.CARPOOL,
+      key: 'seatsProposed',
+    },
+    type: ConfigurationType.NUMBER,
     value: '2',
   },
   createdAt: new Date('2023-10-23T07:00:00Z'),
diff --git a/src/modules/configuration/tests/unit/interface/delete-configuration.grpc.controller.spec.ts b/src/modules/configuration/tests/unit/interface/delete-configuration.grpc.controller.spec.ts
index 1cab8a8..980a267 100644
--- a/src/modules/configuration/tests/unit/interface/delete-configuration.grpc.controller.spec.ts
+++ b/src/modules/configuration/tests/unit/interface/delete-configuration.grpc.controller.spec.ts
@@ -3,7 +3,7 @@ import {
   NotFoundException,
 } from '@mobicoop/ddd-library';
 import { RpcExceptionCode } from '@mobicoop/ddd-library';
-import { Domain } from '@modules/configuration/core/domain/configuration.types';
+import { ConfigurationDomain } from '@modules/configuration/core/domain/configuration.types';
 import { DeleteConfigurationGrpcController } from '@modules/configuration/interface/grpc-controllers/delete-configuration.grpc.controller';
 import { DeleteConfigurationRequestDto } from '@modules/configuration/interface/grpc-controllers/dtos/delete-configuration.request.dto';
 import { CommandBus } from '@nestjs/cqrs';
@@ -11,7 +11,7 @@ import { RpcException } from '@nestjs/microservices';
 import { Test, TestingModule } from '@nestjs/testing';
 
 const deleteConfigurationRequest: DeleteConfigurationRequestDto = {
-  domain: Domain.AD,
+  domain: ConfigurationDomain.CARPOOL,
   key: 'seatsProposed',
 };
 
diff --git a/src/modules/configuration/tests/unit/interface/get-configuration.grpc.controller.spec.ts b/src/modules/configuration/tests/unit/interface/get-configuration.grpc.controller.spec.ts
index 0687baf..604005f 100644
--- a/src/modules/configuration/tests/unit/interface/get-configuration.grpc.controller.spec.ts
+++ b/src/modules/configuration/tests/unit/interface/get-configuration.grpc.controller.spec.ts
@@ -1,7 +1,10 @@
 import { NotFoundException } from '@mobicoop/ddd-library';
 import { RpcExceptionCode } from '@mobicoop/ddd-library';
 import { ConfigurationMapper } from '@modules/configuration/configuration.mapper';
-import { Domain } from '@modules/configuration/core/domain/configuration.types';
+import {
+  ConfigurationDomain,
+  ConfigurationType,
+} from '@modules/configuration/core/domain/configuration.types';
 import { GetConfigurationGrpcController } from '@modules/configuration/interface/grpc-controllers/get-configuration.grpc.controller';
 import { QueryBus } from '@nestjs/cqrs';
 import { RpcException } from '@nestjs/microservices';
@@ -21,9 +24,10 @@ const mockQueryBus = {
 
 const mockConfigurationMapper = {
   toResponse: jest.fn().mockImplementationOnce(() => ({
-    domain: Domain.AD,
+    domain: ConfigurationDomain.CARPOOL,
     key: 'seatsProposed',
     value: '3',
+    type: ConfigurationType.NUMBER,
   })),
 };
 
@@ -62,7 +66,7 @@ describe('Get Configuration Grpc Controller', () => {
     jest.spyOn(mockQueryBus, 'execute');
     jest.spyOn(mockConfigurationMapper, 'toResponse');
     const response = await getConfigurationGrpcController.get({
-      domain: Domain.AD,
+      domain: ConfigurationDomain.CARPOOL,
       key: 'seatsProposed',
     });
     expect(response.value).toBe('3');
@@ -76,7 +80,7 @@ describe('Get Configuration Grpc Controller', () => {
     expect.assertions(4);
     try {
       await getConfigurationGrpcController.get({
-        domain: Domain.AD,
+        domain: ConfigurationDomain.CARPOOL,
         key: 'price',
       });
     } catch (e: any) {
@@ -93,7 +97,7 @@ describe('Get Configuration Grpc Controller', () => {
     expect.assertions(4);
     try {
       await getConfigurationGrpcController.get({
-        domain: Domain.AD,
+        domain: ConfigurationDomain.CARPOOL,
         key: 'someValue',
       });
     } catch (e: any) {
diff --git a/src/modules/configuration/tests/unit/interface/set-configuration.grpc.controller.spec.ts b/src/modules/configuration/tests/unit/interface/set-configuration.grpc.controller.spec.ts
index 9a1d032..8a9d5f4 100644
--- a/src/modules/configuration/tests/unit/interface/set-configuration.grpc.controller.spec.ts
+++ b/src/modules/configuration/tests/unit/interface/set-configuration.grpc.controller.spec.ts
@@ -1,6 +1,6 @@
 import { IdResponse } from '@mobicoop/ddd-library';
 import { RpcExceptionCode } from '@mobicoop/ddd-library';
-import { Domain } from '@modules/configuration/core/domain/configuration.types';
+import { ConfigurationDomain } from '@modules/configuration/core/domain/configuration.types';
 import { SetConfigurationRequestDto } from '@modules/configuration/interface/grpc-controllers/dtos/set-configuration.request.dto';
 import { SetConfigurationGrpcController } from '@modules/configuration/interface/grpc-controllers/set-configuration.grpc.controller';
 import { CommandBus } from '@nestjs/cqrs';
@@ -8,7 +8,7 @@ import { RpcException } from '@nestjs/microservices';
 import { Test, TestingModule } from '@nestjs/testing';
 
 const setConfigurationRequest: SetConfigurationRequestDto = {
-  domain: Domain.AD,
+  domain: ConfigurationDomain.CARPOOL,
   key: 'seatsProposed',
   value: '3',
 };
diff --git a/src/modules/messager/messager.module.ts b/src/modules/messager/messager.module.ts
index d234c61..f14c322 100644
--- a/src/modules/messager/messager.module.ts
+++ b/src/modules/messager/messager.module.ts
@@ -16,12 +16,10 @@ const imports = [
     useFactory: async (
       configService: ConfigService,
     ): Promise<MessageBrokerModuleOptions> => ({
-      uri: configService.get<string>('MESSAGE_BROKER_URI') as string,
+      uri: configService.get<string>('broker.uri') as string,
       exchange: {
-        name: configService.get<string>('MESSAGE_BROKER_EXCHANGE') as string,
-        durable: configService.get<boolean>(
-          'MESSAGE_BROKER_EXCHANGE_DURABILITY',
-        ) as boolean,
+        name: configService.get<string>('broker.exchange') as string,
+        durable: configService.get<boolean>('broker.durability') as boolean,
       },
       name: SERVICE_NAME,
     }),