diff --git a/api/src/nlp/controllers/nlp-entity.controller.spec.ts b/api/src/nlp/controllers/nlp-entity.controller.spec.ts
index 484f41c8..db405e63 100644
--- a/api/src/nlp/controllers/nlp-entity.controller.spec.ts
+++ b/api/src/nlp/controllers/nlp-entity.controller.spec.ts
@@ -9,7 +9,6 @@
 import { CACHE_MANAGER } from '@nestjs/cache-manager';
 import {
   BadRequestException,
-  ConflictException,
   MethodNotAllowedException,
   NotFoundException,
 } from '@nestjs/common';
@@ -29,7 +28,7 @@ import {
 import { TFixtures } from '@/utils/test/types';
 import { buildTestingMocks } from '@/utils/test/utils';
 
-import { NlpEntityCreateDto } from '../dto/nlp-entity.dto';
+import { NlpEntityCreateDto, NlpEntityUpdateDto } from '../dto/nlp-entity.dto';
 import { NlpEntityRepository } from '../repositories/nlp-entity.repository';
 import { NlpSampleEntityRepository } from '../repositories/nlp-sample-entity.repository';
 import { NlpValueRepository } from '../repositories/nlp-value.repository';
@@ -270,24 +269,8 @@ describe('NlpEntityController', () => {
       ).rejects.toThrow(NotFoundException);
     });
 
-    it('should throw an exception if entity is builtin but weight not provided', async () => {
-      const updateNlpEntity: NlpEntityCreateDto = {
-        name: 'updated',
-        doc: '',
-        lookups: ['trait'],
-        builtin: false,
-      };
-      await expect(
-        nlpEntityController.updateOne(buitInEntityId!, updateNlpEntity),
-      ).rejects.toThrow(ConflictException);
-    });
-
     it('should update weight if entity is builtin and weight is provided', async () => {
-      const updatedNlpEntity: NlpEntityCreateDto = {
-        name: 'updated',
-        doc: '',
-        lookups: ['trait'],
-        builtin: false,
+      const updatedNlpEntity: NlpEntityUpdateDto = {
         weight: 4,
       };
       const findOneSpy = jest.spyOn(nlpEntityService, 'findOne');
diff --git a/api/src/nlp/controllers/nlp-entity.controller.ts b/api/src/nlp/controllers/nlp-entity.controller.ts
index af549526..32d22b11 100644
--- a/api/src/nlp/controllers/nlp-entity.controller.ts
+++ b/api/src/nlp/controllers/nlp-entity.controller.ts
@@ -9,7 +9,6 @@
 import {
   BadRequestException,
   Body,
-  ConflictException,
   Controller,
   Delete,
   Get,
@@ -34,7 +33,7 @@ import { PopulatePipe } from '@/utils/pipes/populate.pipe';
 import { SearchFilterPipe } from '@/utils/pipes/search-filter.pipe';
 import { TFilterQuery } from '@/utils/types/filter.types';
 
-import { NlpEntityCreateDto } from '../dto/nlp-entity.dto';
+import { NlpEntityCreateDto, NlpEntityUpdateDto } from '../dto/nlp-entity.dto';
 import {
   NlpEntity,
   NlpEntityFull,
@@ -143,7 +142,7 @@ export class NlpEntityController extends BaseController<
    * This endpoint allows updating an existing NLP entity. The entity must not be a built-in entity.
    *
    * @param id - The ID of the NLP entity to update.
-   * @param updateNlpEntityDto - The new data for the NLP entity.
+   * @param nlpEntityDto - The new data for the NLP entity.
    *
    * @returns The updated NLP entity.
    */
@@ -151,7 +150,7 @@ export class NlpEntityController extends BaseController<
   @Patch(':id')
   async updateOne(
     @Param('id') id: string,
-    @Body() updateNlpEntityDto: NlpEntityCreateDto,
+    @Body() nlpEntityDto: NlpEntityUpdateDto,
   ): Promise<NlpEntity> {
     const nlpEntity = await this.nlpEntityService.findOne(id);
     if (!nlpEntity) {
@@ -159,21 +158,12 @@ export class NlpEntityController extends BaseController<
       throw new NotFoundException(`NLP Entity with ID ${id} not found`);
     }
 
-    if (nlpEntity.builtin) {
+    if (nlpEntity.builtin && nlpEntityDto.weight) {
       // Only allow weight update for builtin entities
-      if (updateNlpEntityDto.weight) {
-        return await this.nlpEntityService.updateWeight(
-          id,
-          updateNlpEntityDto.weight,
-        );
-      } else {
-        throw new ConflictException(
-          `Cannot update builtin NLP Entity ${nlpEntity.name} except for weight`,
-        );
-      }
+      return await this.nlpEntityService.updateWeight(id, nlpEntityDto.weight);
     }
 
-    return await this.nlpEntityService.updateOne(id, updateNlpEntityDto);
+    return await this.nlpEntityService.updateOne(id, nlpEntityDto);
   }
 
   /**
diff --git a/api/src/nlp/dto/nlp-entity.dto.ts b/api/src/nlp/dto/nlp-entity.dto.ts
index 86ddf7d8..d82b6689 100644
--- a/api/src/nlp/dto/nlp-entity.dto.ts
+++ b/api/src/nlp/dto/nlp-entity.dto.ts
@@ -55,7 +55,25 @@ export class NlpEntityCreateDto {
     type: Number,
   })
   @IsOptional()
-  @Validate((value) => value > 0, {
+  @Validate((value: number) => value > 0, {
+    message: 'Weight must be a strictly positive number',
+  })
+  @IsNumber({ allowNaN: false, allowInfinity: false })
+  weight?: number;
+}
+
+export class NlpEntityUpdateDto {
+  @ApiPropertyOptional({ type: String })
+  @IsString()
+  @IsOptional()
+  foreign_id?: string;
+
+  @ApiPropertyOptional({
+    description: 'Nlp entity associated weight for next block triggering',
+    type: Number,
+  })
+  @IsOptional()
+  @Validate((value: number) => value > 0, {
     message: 'Weight must be a strictly positive number',
   })
   @IsNumber({ allowNaN: false, allowInfinity: false })
@@ -64,4 +82,5 @@ export class NlpEntityCreateDto {
 
 export type NlpEntityDto = DtoConfig<{
   create: NlpEntityCreateDto;
+  update: NlpEntityUpdateDto;
 }>;
diff --git a/api/src/nlp/services/nlp-entity.service.ts b/api/src/nlp/services/nlp-entity.service.ts
index 2704dabd..0f38c920 100644
--- a/api/src/nlp/services/nlp-entity.service.ts
+++ b/api/src/nlp/services/nlp-entity.service.ts
@@ -7,7 +7,7 @@
  */
 
 import { CACHE_MANAGER } from '@nestjs/cache-manager';
-import { Inject, Injectable } from '@nestjs/common';
+import { BadRequestException, Inject, Injectable } from '@nestjs/common';
 import { OnEvent } from '@nestjs/event-emitter';
 import { Cache } from 'cache-manager';
 
@@ -64,7 +64,9 @@ export class NlpEntityService extends BaseService<
    */
   async updateWeight(id: string, updatedWeight: number): Promise<NlpEntity> {
     if (updatedWeight <= 0) {
-      throw new Error('Weight must be a strictly positive number');
+      throw new BadRequestException(
+        'Weight must be a strictly positive number',
+      );
     }
 
     return await this.repository.updateOne(id, { weight: updatedWeight });
diff --git a/api/src/nlp/services/nlp.service.ts b/api/src/nlp/services/nlp.service.ts
index 905a9465..6a779648 100644
--- a/api/src/nlp/services/nlp.service.ts
+++ b/api/src/nlp/services/nlp.service.ts
@@ -10,7 +10,7 @@ import { Injectable, NotFoundException } from '@nestjs/common';
 import { OnEvent } from '@nestjs/event-emitter';
 
 import { HelperService } from '@/helper/helper.service';
-import { NLU } from '@/helper/types';
+import { HelperType, NLU } from '@/helper/types';
 import { LoggerService } from '@/logger/logger.service';
 
 import { NlpEntity, NlpEntityDocument } from '../schemas/nlp-entity.schema';
@@ -70,7 +70,7 @@ export class NlpService {
   async handleEntityCreate(entity: NlpEntityDocument) {
     // Synchonize new entity with NLP
     try {
-      const helper = await this.helperService.getDefaultNluHelper();
+      const helper = await this.helperService.getDefaultHelper(HelperType.NLU);
       const foreignId = await helper.addEntity(entity);
       this.logger.debug('New entity successfully synced!', foreignId);
       return await this.nlpEntityService.updateOne(