diff --git a/src/database/migrations/1720900000000-MoveSuggestionsToServiceSkill.ts b/src/database/migrations/1720900000000-MoveSuggestionsToServiceSkill.ts
new file mode 100644
index 0000000..b81c289
--- /dev/null
+++ b/src/database/migrations/1720900000000-MoveSuggestionsToServiceSkill.ts
@@ -0,0 +1,178 @@
+import {
+  MigrationInterface,
+  QueryRunner,
+  TableColumn,
+  TableForeignKey,
+  TableIndex,
+  TableUnique,
+} from 'typeorm';
+
+export class MoveSuggestionsToServiceSkill1720900000000
+  implements MigrationInterface
+{
+  name = 'MoveSuggestionsToServiceSkill1720900000000';
+
+  public async up(queryRunner: QueryRunner): Promise<void> {
+    const table = await queryRunner.getTable('service_suggestions');
+
+    const serviceFk = table?.foreignKeys.find((fk) =>
+      fk.columnNames.includes('serviceId'),
+    );
+    if (serviceFk) {
+      await queryRunner.dropForeignKey('service_suggestions', serviceFk);
+    }
+
+    const suggestedServiceFk = table?.foreignKeys.find((fk) =>
+      fk.columnNames.includes('suggestedServiceId'),
+    );
+    if (suggestedServiceFk) {
+      await queryRunner.dropForeignKey('service_suggestions', suggestedServiceFk);
+    }
+
+    const uniqueConstraints = table?.uniques ?? [];
+    for (const unique of uniqueConstraints) {
+      await queryRunner.dropUniqueConstraint('service_suggestions', unique);
+    }
+
+    const indexes = table?.indices ?? [];
+    for (const index of indexes) {
+      if (index.columnNames.includes('serviceId') || index.columnNames.includes('serviceSkillId')) {
+        await queryRunner.dropIndex('service_suggestions', index);
+      }
+    }
+
+    if (table?.findColumnByName('serviceId')) {
+      await queryRunner.dropColumn('service_suggestions', 'serviceId');
+    }
+    if (table?.findColumnByName('suggestedServiceId')) {
+      await queryRunner.dropColumn('service_suggestions', 'suggestedServiceId');
+    }
+
+    const refreshedTable = await queryRunner.getTable('service_suggestions');
+
+    if (!refreshedTable?.findColumnByName('serviceSkillId')) {
+      await queryRunner.addColumn(
+        'service_suggestions',
+        new TableColumn({
+          name: 'serviceSkillId',
+          type: 'uuid',
+        }),
+      );
+    }
+
+    if (!refreshedTable?.findColumnByName('suggestedServiceSkillId')) {
+      await queryRunner.addColumn(
+        'service_suggestions',
+        new TableColumn({
+          name: 'suggestedServiceSkillId',
+          type: 'uuid',
+        }),
+      );
+    }
+
+    await queryRunner.createForeignKey(
+      'service_suggestions',
+      new TableForeignKey({
+        columnNames: ['serviceSkillId'],
+        referencedTableName: 'service_skills',
+        referencedColumnNames: ['id'],
+        onDelete: 'CASCADE',
+      }),
+    );
+
+    await queryRunner.createForeignKey(
+      'service_suggestions',
+      new TableForeignKey({
+        columnNames: ['suggestedServiceSkillId'],
+        referencedTableName: 'service_skills',
+        referencedColumnNames: ['id'],
+        onDelete: 'CASCADE',
+      }),
+    );
+
+    await queryRunner.createUniqueConstraint(
+      'service_suggestions',
+      new TableUnique({
+        name: 'UQ_service_suggestions_serviceSkillId_suggestedServiceSkillId',
+        columnNames: ['serviceSkillId', 'suggestedServiceSkillId'],
+      }),
+    );
+
+    await queryRunner.createIndex(
+      'service_suggestions',
+      new TableIndex({
+        name: 'IDX_service_suggestions_serviceSkillId_isActive_displayPriority',
+        columnNames: ['serviceSkillId', 'isActive', 'displayPriority'],
+      }),
+    );
+  }
+
+  public async down(queryRunner: QueryRunner): Promise<void> {
+    const table = await queryRunner.getTable('service_suggestions');
+
+    for (const fk of table?.foreignKeys ?? []) {
+      if (
+        fk.columnNames.includes('serviceSkillId') ||
+        fk.columnNames.includes('suggestedServiceSkillId')
+      ) {
+        await queryRunner.dropForeignKey('service_suggestions', fk);
+      }
+    }
+
+    await queryRunner.dropUniqueConstraint(
+      'service_suggestions',
+      'UQ_service_suggestions_serviceSkillId_suggestedServiceSkillId',
+    );
+    await queryRunner.dropIndex(
+      'service_suggestions',
+      'IDX_service_suggestions_serviceSkillId_isActive_displayPriority',
+    );
+    await queryRunner.dropColumn('service_suggestions', 'serviceSkillId');
+    await queryRunner.dropColumn('service_suggestions', 'suggestedServiceSkillId');
+
+    await queryRunner.addColumn(
+      'service_suggestions',
+      new TableColumn({ name: 'serviceId', type: 'uuid' }),
+    );
+    await queryRunner.addColumn(
+      'service_suggestions',
+      new TableColumn({ name: 'suggestedServiceId', type: 'uuid' }),
+    );
+
+    await queryRunner.createForeignKey(
+      'service_suggestions',
+      new TableForeignKey({
+        columnNames: ['serviceId'],
+        referencedTableName: 'services',
+        referencedColumnNames: ['id'],
+        onDelete: 'CASCADE',
+      }),
+    );
+
+    await queryRunner.createForeignKey(
+      'service_suggestions',
+      new TableForeignKey({
+        columnNames: ['suggestedServiceId'],
+        referencedTableName: 'services',
+        referencedColumnNames: ['id'],
+        onDelete: 'CASCADE',
+      }),
+    );
+
+    await queryRunner.createUniqueConstraint(
+      'service_suggestions',
+      new TableUnique({
+        name: 'UQ_service_suggestions_serviceId_suggestedServiceId',
+        columnNames: ['serviceId', 'suggestedServiceId'],
+      }),
+    );
+
+    await queryRunner.createIndex(
+      'service_suggestions',
+      new TableIndex({
+        name: 'IDX_service_suggestions_serviceId_isActive_displayPriority',
+        columnNames: ['serviceId', 'isActive', 'displayPriority'],
+      }),
+    );
+  }
+}
diff --git a/src/suggestions/dto/create-bulk-service-suggestion-item.dto.ts b/src/suggestions/dto/create-bulk-service-suggestion-item.dto.ts
new file mode 100644
index 0000000..bc8c4c7
--- /dev/null
+++ b/src/suggestions/dto/create-bulk-service-suggestion-item.dto.ts
@@ -0,0 +1,38 @@
+import {
+  IsBoolean,
+  IsEnum,
+  IsInt,
+  IsNotEmpty,
+  IsOptional,
+  IsString,
+  IsUUID,
+  MaxLength,
+  Min,
+} from 'class-validator';
+import { SuggestionType } from '../enums/suggestion-type.enum';
+
+export class CreateBulkServiceSuggestionItemDto {
+  @IsUUID()
+  suggestedServiceSkillId: string;
+
+  @IsOptional()
+  @IsBoolean()
+  isActive?: boolean;
+
+  @IsString()
+  @IsNotEmpty()
+  @MaxLength(100)
+  badgeTitle: string;
+
+  @IsInt()
+  @Min(0)
+  displayPriority: number;
+
+  @IsOptional()
+  @IsString()
+  @MaxLength(500)
+  shortDescription?: string;
+
+  @IsEnum(SuggestionType)
+  type: SuggestionType;
+}
diff --git a/src/suggestions/dto/create-bulk-service-suggestions.dto.ts b/src/suggestions/dto/create-bulk-service-suggestions.dto.ts
new file mode 100644
index 0000000..1ae7550
--- /dev/null
+++ b/src/suggestions/dto/create-bulk-service-suggestions.dto.ts
@@ -0,0 +1,19 @@
+import { Type } from 'class-transformer';
+import {
+  ArrayMinSize,
+  IsArray,
+  IsUUID,
+  ValidateNested,
+} from 'class-validator';
+import { CreateBulkServiceSuggestionItemDto } from './create-bulk-service-suggestion-item.dto';
+
+export class CreateBulkServiceSuggestionsDto {
+  @IsUUID()
+  serviceSkillId: string;
+
+  @IsArray()
+  @ArrayMinSize(1)
+  @ValidateNested({ each: true })
+  @Type(() => CreateBulkServiceSuggestionItemDto)
+  suggestions: CreateBulkServiceSuggestionItemDto[];
+}
diff --git a/src/suggestions/dto/create-service-suggestion.dto.ts b/src/suggestions/dto/create-service-suggestion.dto.ts
index e0f37b4..9dccec5 100644
--- a/src/suggestions/dto/create-service-suggestion.dto.ts
+++ b/src/suggestions/dto/create-service-suggestion.dto.ts
@@ -13,10 +13,10 @@ import { SuggestionType } from '../enums/suggestion-type.enum';
 
 export class CreateServiceSuggestionDto {
   @IsUUID()
-  serviceId: string;
+  serviceSkillId: string;
 
   @IsUUID()
-  suggestedServiceId: string;
+  suggestedServiceSkillId: string;
 
   @IsOptional()
   @IsBoolean()
diff --git a/src/suggestions/dto/find-suggestions-query.dto.ts b/src/suggestions/dto/find-suggestions-query.dto.ts
index 2b4e3b4..8cb8bf0 100644
--- a/src/suggestions/dto/find-suggestions-query.dto.ts
+++ b/src/suggestions/dto/find-suggestions-query.dto.ts
@@ -4,7 +4,7 @@ import { IsBoolean, IsOptional, IsUUID } from 'class-validator';
 export class FindSuggestionsQueryDto {
   @IsOptional()
   @IsUUID()
-  serviceId?: string;
+  serviceSkillId?: string;
 
   @IsOptional()
   @Transform(({ value }) => value === 'true' || value === true)
diff --git a/src/suggestions/dto/update-service-suggestion.dto.ts b/src/suggestions/dto/update-service-suggestion.dto.ts
index 1a397be..8744338 100644
--- a/src/suggestions/dto/update-service-suggestion.dto.ts
+++ b/src/suggestions/dto/update-service-suggestion.dto.ts
@@ -13,11 +13,11 @@ import { SuggestionType } from '../enums/suggestion-type.enum';
 export class UpdateServiceSuggestionDto {
   @IsOptional()
   @IsUUID()
-  serviceId?: string;
+  serviceSkillId?: string;
 
   @IsOptional()
   @IsUUID()
-  suggestedServiceId?: string;
+  suggestedServiceSkillId?: string;
 
   @IsOptional()
   @IsBoolean()
diff --git a/src/suggestions/entities/service-suggestion.entity.ts b/src/suggestions/entities/service-suggestion.entity.ts
index 4aaf886..482f6e4 100644
--- a/src/suggestions/entities/service-suggestion.entity.ts
+++ b/src/suggestions/entities/service-suggestion.entity.ts
@@ -9,29 +9,29 @@ import {
   Unique,
   UpdateDateColumn,
 } from 'typeorm';
-import { Service } from '../../services/entities/service.entity';
+import { ServiceSkill } from '../../services/entities/service-skill.entity';
 import { SuggestionType } from '../enums/suggestion-type.enum';
 
 @Entity('service_suggestions')
-@Unique(['serviceId', 'suggestedServiceId'])
-@Index(['serviceId', 'isActive', 'displayPriority'])
+@Unique(['serviceSkillId', 'suggestedServiceSkillId'])
+@Index(['serviceSkillId', 'isActive', 'displayPriority'])
 export class ServiceSuggestion {
   @PrimaryGeneratedColumn('uuid')
   id: string;
 
   @Column()
-  serviceId: string;
+  serviceSkillId: string;
 
-  @ManyToOne(() => Service, { onDelete: 'CASCADE' })
-  @JoinColumn({ name: 'serviceId' })
-  service: Service;
+  @ManyToOne(() => ServiceSkill, { onDelete: 'CASCADE' })
+  @JoinColumn({ name: 'serviceSkillId' })
+  serviceSkill: ServiceSkill;
 
   @Column()
-  suggestedServiceId: string;
+  suggestedServiceSkillId: string;
 
-  @ManyToOne(() => Service, { onDelete: 'CASCADE' })
-  @JoinColumn({ name: 'suggestedServiceId' })
-  suggestedService: Service;
+  @ManyToOne(() => ServiceSkill, { onDelete: 'CASCADE' })
+  @JoinColumn({ name: 'suggestedServiceSkillId' })
+  suggestedServiceSkill: ServiceSkill;
 
   @Column({ default: true })
   isActive: boolean;
diff --git a/src/suggestions/suggestions.controller.ts b/src/suggestions/suggestions.controller.ts
index e426ba7..2338315 100644
--- a/src/suggestions/suggestions.controller.ts
+++ b/src/suggestions/suggestions.controller.ts
@@ -20,6 +20,7 @@ import { RolesGuard } from '../auth/guards/roles.guard';
 import { AuthUser } from '../auth/interfaces/auth-user.interface';
 import { PermissionCode } from '../authorization/enums/permission-code.enum';
 import { UserRole } from '../users/enums/user-role.enum';
+import { CreateBulkServiceSuggestionsDto } from './dto/create-bulk-service-suggestions.dto';
 import { CreateServiceSuggestionDto } from './dto/create-service-suggestion.dto';
 import { FindSuggestionsQueryDto } from './dto/find-suggestions-query.dto';
 import { UpdateServiceSuggestionDto } from './dto/update-service-suggestion.dto';
@@ -52,6 +53,17 @@ export class SuggestionsController {
     return this.suggestionsService.create(createDto, user);
   }
 
+  @Roles(UserRole.ADMIN)
+  @Permissions(PermissionCode.SERVICES_WRITE)
+  @ApiStandardOkResponse(ServiceSuggestion, { isArray: true })
+  @Post('bulk')
+  createBulk(
+    @Body() createDto: CreateBulkServiceSuggestionsDto,
+    @CurrentUser() user: AuthUser,
+  ) {
+    return this.suggestionsService.createBulk(createDto, user);
+  }
+
   @Roles(UserRole.ADMIN)
   @Permissions(PermissionCode.SERVICES_READ)
   @ApiStandardOkResponse(ServiceSuggestion, { isArray: true })
@@ -61,11 +73,13 @@ export class SuggestionsController {
   }
 
   @Public()
-  @ApiPublicEndpoint('Get suggestions for a service')
+  @ApiPublicEndpoint('Get suggestions for a service skill')
   @ApiStandardOkResponse(ServiceSuggestion, { isArray: true })
-  @Get('for-service/:serviceId')
-  findForService(@Param('serviceId', ParseUUIDPipe) serviceId: string) {
-    return this.suggestionsService.findForService(serviceId);
+  @Get('for-service-skill/:serviceSkillId')
+  findForServiceSkill(
+    @Param('serviceSkillId', ParseUUIDPipe) serviceSkillId: string,
+  ) {
+    return this.suggestionsService.findForServiceSkill(serviceSkillId);
   }
 
   @Roles(UserRole.ADMIN)
diff --git a/src/suggestions/suggestions.module.ts b/src/suggestions/suggestions.module.ts
index 00b68d5..7fb9659 100644
--- a/src/suggestions/suggestions.module.ts
+++ b/src/suggestions/suggestions.module.ts
@@ -2,14 +2,14 @@ import { Module } from '@nestjs/common';
 import { TypeOrmModule } from '@nestjs/typeorm';
 import { AuthGuardsModule } from '../auth/auth-guards.module';
 import { AuthorizationModule } from '../authorization/authorization.module';
-import { Service } from '../services/entities/service.entity';
+import { ServiceSkill } from '../services/entities/service-skill.entity';
 import { ServiceSuggestion } from './entities/service-suggestion.entity';
 import { SuggestionsController } from './suggestions.controller';
 import { SuggestionsService } from './suggestions.service';
 
 @Module({
   imports: [
-    TypeOrmModule.forFeature([ServiceSuggestion, Service]),
+    TypeOrmModule.forFeature([ServiceSuggestion, ServiceSkill]),
     AuthorizationModule,
     AuthGuardsModule,
   ],
diff --git a/src/suggestions/suggestions.service.ts b/src/suggestions/suggestions.service.ts
index ad4670f..6c34e32 100644
--- a/src/suggestions/suggestions.service.ts
+++ b/src/suggestions/suggestions.service.ts
@@ -5,22 +5,25 @@ import {
   NotFoundException,
 } from '@nestjs/common';
 import { InjectRepository } from '@nestjs/typeorm';
-import { FindOptionsWhere, Repository } from 'typeorm';
+import { FindOptionsWhere, In, Repository } from 'typeorm';
 import { ServicePolicy } from '../authorization/policies/service.policy';
 import { AuthUser } from '../auth/interfaces/auth-user.interface';
-import { Service } from '../services/entities/service.entity';
+import { ServiceSkill } from '../services/entities/service-skill.entity';
+import { CreateBulkServiceSuggestionsDto } from './dto/create-bulk-service-suggestions.dto';
 import { CreateServiceSuggestionDto } from './dto/create-service-suggestion.dto';
 import { FindSuggestionsQueryDto } from './dto/find-suggestions-query.dto';
 import { UpdateServiceSuggestionDto } from './dto/update-service-suggestion.dto';
 import { ServiceSuggestion } from './entities/service-suggestion.entity';
 
+const skillRelations = { service: true } as const;
+
 @Injectable()
 export class SuggestionsService {
   constructor(
     @InjectRepository(ServiceSuggestion)
     private readonly suggestionsRepository: Repository<ServiceSuggestion>,
-    @InjectRepository(Service)
-    private readonly servicesRepository: Repository<Service>,
+    @InjectRepository(ServiceSkill)
+    private readonly serviceSkillsRepository: Repository<ServiceSkill>,
     private readonly servicePolicy: ServicePolicy,
   ) {}
 
@@ -29,27 +32,73 @@ export class SuggestionsService {
     user: AuthUser,
   ): Promise<ServiceSuggestion> {
     this.ensureCanManage(user);
-    await this.validateServices(
-      createDto.serviceId,
-      createDto.suggestedServiceId,
+    await this.validateSuggestionTargets(
+      createDto.serviceSkillId,
+      createDto.suggestedServiceSkillId,
     );
     const suggestion = this.suggestionsRepository.create(createDto);
     const saved = await this.suggestionsRepository.save(suggestion);
     return this.findOne(saved.id);
   }
 
-  findAll(query: FindSuggestionsQueryDto): Promise<ServiceSuggestion[]> {
+  async createBulk(
+    createDto: CreateBulkServiceSuggestionsDto,
+    user: AuthUser,
+  ): Promise<ServiceSuggestion[]> {
+    this.ensureCanManage(user);
+
+    const { serviceSkillId, suggestions } = createDto;
+    const suggestedServiceSkillIds = suggestions.map(
+      (item) => item.suggestedServiceSkillId,
+    );
+
+    await this.validateBaseServiceSkill(serviceSkillId);
+    this.ensureUniqueSuggestedSkills(suggestedServiceSkillIds);
+    await this.validateSuggestedServiceSkills(
+      serviceSkillId,
+      suggestedServiceSkillIds,
+    );
+    await this.ensureNoExistingSuggestions(
+      serviceSkillId,
+      suggestedServiceSkillIds,
+    );
+
+    const savedIds = await this.suggestionsRepository.manager.transaction(
+      async (manager) => {
+        const repository = manager.getRepository(ServiceSuggestion);
+        const entities = suggestions.map((item) =>
+          repository.create({ ...item, serviceSkillId }),
+        );
+        const saved = await repository.save(entities);
+        return saved.map((suggestion) => suggestion.id);
+      },
+    );
+
     return this.suggestionsRepository.find({
-      where: this.buildWhere(query),
-      relations: { service: true, suggestedService: true },
+      where: { id: In(savedIds) },
+      relations: {
+        serviceSkill: skillRelations,
+        suggestedServiceSkill: skillRelations,
+      },
       order: { displayPriority: 'ASC', createdAt: 'ASC' },
     });
   }
 
-  findForService(serviceId: string): Promise<ServiceSuggestion[]> {
+  findAll(query: FindSuggestionsQueryDto): Promise<ServiceSuggestion[]> {
     return this.suggestionsRepository.find({
-      where: { serviceId, isActive: true },
-      relations: { suggestedService: true },
+      where: this.buildWhere(query),
+      relations: {
+        serviceSkill: skillRelations,
+        suggestedServiceSkill: skillRelations,
+      },
+      order: { displayPriority: 'ASC', createdAt: 'ASC' },
+    });
+  }
+
+  findForServiceSkill(serviceSkillId: string): Promise<ServiceSuggestion[]> {
+    return this.suggestionsRepository.find({
+      where: { serviceSkillId, isActive: true },
+      relations: { suggestedServiceSkill: skillRelations },
       order: { displayPriority: 'ASC', createdAt: 'ASC' },
     });
   }
@@ -57,7 +106,10 @@ export class SuggestionsService {
   async findOne(id: string): Promise<ServiceSuggestion> {
     const suggestion = await this.suggestionsRepository.findOne({
       where: { id },
-      relations: { service: true, suggestedService: true },
+      relations: {
+        serviceSkill: skillRelations,
+        suggestedServiceSkill: skillRelations,
+      },
     });
     if (!suggestion) {
       throw new NotFoundException(`Suggestion #${id} not found`);
@@ -72,11 +124,11 @@ export class SuggestionsService {
   ): Promise<ServiceSuggestion> {
     this.ensureCanManage(user);
     const suggestion = await this.findOne(id);
-    const serviceId = updateDto.serviceId ?? suggestion.serviceId;
-    const suggestedServiceId =
-      updateDto.suggestedServiceId ?? suggestion.suggestedServiceId;
+    const serviceSkillId = updateDto.serviceSkillId ?? suggestion.serviceSkillId;
+    const suggestedServiceSkillId =
+      updateDto.suggestedServiceSkillId ?? suggestion.suggestedServiceSkillId;
 
-    await this.validateServices(serviceId, suggestedServiceId);
+    await this.validateSuggestionTargets(serviceSkillId, suggestedServiceSkillId);
     Object.assign(suggestion, updateDto);
     await this.suggestionsRepository.save(suggestion);
     return this.findOne(id);
@@ -93,8 +145,8 @@ export class SuggestionsService {
   ): FindOptionsWhere<ServiceSuggestion> {
     const where: FindOptionsWhere<ServiceSuggestion> = {};
 
-    if (query.serviceId) {
-      where.serviceId = query.serviceId;
+    if (query.serviceSkillId) {
+      where.serviceSkillId = query.serviceSkillId;
     }
     if (query.isActive !== undefined) {
       where.isActive = query.isActive;
@@ -109,27 +161,71 @@ export class SuggestionsService {
     }
   }
 
-  private async validateServices(
-    serviceId: string,
-    suggestedServiceId: string,
+  private async validateSuggestionTargets(
+    serviceSkillId: string,
+    suggestedServiceSkillId: string,
   ): Promise<void> {
-    if (serviceId === suggestedServiceId) {
-      throw new BadRequestException(
-        'A service cannot be suggested for itself',
+    if (serviceSkillId === suggestedServiceSkillId) {
+      throw new BadRequestException('A skill cannot be suggested for itself');
+    }
+
+    await this.validateBaseServiceSkill(serviceSkillId);
+    await this.validateSuggestedServiceSkills(serviceSkillId, [
+      suggestedServiceSkillId,
+    ]);
+  }
+
+  private async validateBaseServiceSkill(serviceSkillId: string): Promise<void> {
+    const exists = await this.serviceSkillsRepository.existsBy({ id: serviceSkillId });
+    if (!exists) {
+      throw new NotFoundException(`Service skill #${serviceSkillId} not found`);
+    }
+  }
+
+  private ensureUniqueSuggestedSkills(suggestedServiceSkillIds: string[]): void {
+    const uniqueIds = new Set(suggestedServiceSkillIds);
+    if (uniqueIds.size !== suggestedServiceSkillIds.length) {
+      throw new BadRequestException('Duplicate suggested skills in batch');
+    }
+  }
+
+  private async validateSuggestedServiceSkills(
+    serviceSkillId: string,
+    suggestedServiceSkillIds: string[],
+  ): Promise<void> {
+    if (suggestedServiceSkillIds.includes(serviceSkillId)) {
+      throw new BadRequestException('A skill cannot be suggested for itself');
+    }
+
+    const suggestedSkills = await this.serviceSkillsRepository.find({
+      where: { id: In(suggestedServiceSkillIds) },
+      select: { id: true },
+    });
+
+    if (suggestedSkills.length !== suggestedServiceSkillIds.length) {
+      const foundIds = new Set(suggestedSkills.map((skill) => skill.id));
+      const missingId = suggestedServiceSkillIds.find((id) => !foundIds.has(id));
+      throw new NotFoundException(
+        `Suggested service skill #${missingId} not found`,
       );
     }
+  }
 
-    const [serviceExists, suggestedExists] = await Promise.all([
-      this.servicesRepository.existsBy({ id: serviceId }),
-      this.servicesRepository.existsBy({ id: suggestedServiceId }),
-    ]);
+  private async ensureNoExistingSuggestions(
+    serviceSkillId: string,
+    suggestedServiceSkillIds: string[],
+  ): Promise<void> {
+    const existing = await this.suggestionsRepository.find({
+      where: {
+        serviceSkillId,
+        suggestedServiceSkillId: In(suggestedServiceSkillIds),
+      },
+      select: { suggestedServiceSkillId: true },
+    });
 
-    if (!serviceExists) {
-      throw new NotFoundException(`Service #${serviceId} not found`);
-    }
-    if (!suggestedExists) {
-      throw new NotFoundException(
-        `Suggested service #${suggestedServiceId} not found`,
+    if (existing.length > 0) {
+      throw new BadRequestException(
+        'Some suggestions already exist for this service skill',
       );
     }
   }