diff --git a/src/space-model/common/services/base-product-item-model.service.ts b/src/space-model/common/services/base-product-item-model.service.ts
index 80c8119..4d67e6d 100644
--- a/src/space-model/common/services/base-product-item-model.service.ts
+++ b/src/space-model/common/services/base-product-item-model.service.ts
@@ -57,4 +57,23 @@ export abstract class BaseProductItemService {
       );
     }
   }
+
+  protected async saveProductItems<T>(
+    productItems: T[],
+    targetRepository: any,
+    queryRunner: QueryRunner,
+  ): Promise<T[]> {
+    try {
+      const savedItem = await queryRunner.manager.save(
+        targetRepository,
+        productItems,
+      );
+      return savedItem;
+    } catch (error) {
+      throw new HttpException(
+        error.message || 'An error occurred while creating product items.',
+        HttpStatus.INTERNAL_SERVER_ERROR,
+      );
+    }
+  }
 }
diff --git a/src/space-model/interfaces/update-subspace.interface.ts b/src/space-model/interfaces/update-subspace.interface.ts
index a49491f..05982a4 100644
--- a/src/space-model/interfaces/update-subspace.interface.ts
+++ b/src/space-model/interfaces/update-subspace.interface.ts
@@ -21,6 +21,12 @@ export interface IModifySubspaceModelInterface {
   delete?: IDeletedSubsaceModelInterface[];
 }
 
+export interface IModifiedProductItemsModelsInterface {
+  new?: SubspaceProductItemModelEntity[];
+  update?: SubspaceProductItemModelEntity[];
+  delete?: string[];
+}
+
 export interface IUpdateSubspaceModelInterface {
   subspaceName?: string;
   uuid: string;
diff --git a/src/space-model/services/subspace/subspace-product-item-model.service.ts b/src/space-model/services/subspace/subspace-product-item-model.service.ts
index 85989f8..cdd0688 100644
--- a/src/space-model/services/subspace/subspace-product-item-model.service.ts
+++ b/src/space-model/services/subspace/subspace-product-item-model.service.ts
@@ -7,7 +7,13 @@ import {
   SubspaceProductModelEntity,
 } from '@app/common/modules/space-model';
 import { BaseProductItemService } from '../../common';
-import { CreateProductItemModelDto } from '../../dtos';
+import {
+  CreateProductItemModelDto,
+  DeleteProductItemModelDto,
+  ProductItemModelModificationDto,
+  UpdateProductItemModelDto,
+} from '../../dtos';
+import { IModifiedProductItemsModelsInterface } from 'src/space-model/interfaces';
 
 @Injectable()
 export class SubspaceProductItemModelService extends BaseProductItemService {
@@ -17,7 +23,7 @@ export class SubspaceProductItemModelService extends BaseProductItemService {
     super();
   }
 
-  async createProdutItemModel(
+  async createProductItemModel(
     itemModelDtos: CreateProductItemModelDto[],
     subspaceProductModel: SubspaceProductModelEntity,
     spaceModel: SpaceModelEntity,
@@ -29,7 +35,9 @@ export class SubspaceProductItemModelService extends BaseProductItemService {
         HttpStatus.BAD_REQUEST,
       );
     }
+
     await this.validateTags(itemModelDtos, queryRunner, spaceModel);
+
     try {
       const productItems = itemModelDtos.map((dto) =>
         queryRunner.manager.create(this.subspaceProductItemRepository.target, {
@@ -37,19 +45,131 @@ export class SubspaceProductItemModelService extends BaseProductItemService {
           subspaceProductModel,
         }),
       );
-
-      await queryRunner.manager.save(productItems);
-      return productItems;
+      return await this.saveProductItems(
+        productItems,
+        this.subspaceProductItemRepository,
+        queryRunner,
+      );
     } catch (error) {
-      if (error instanceof HttpException) {
-        throw error;
-      }
-
-      throw new HttpException(
-        error.message ||
-          'An unexpected error occurred while creating product items.',
-        HttpStatus.INTERNAL_SERVER_ERROR,
+      this.handleException(
+        error,
+        'An unexpected error occurred while creating product items.',
       );
     }
   }
+
+  async updateProductItemModel(
+    dtos: UpdateProductItemModelDto[],
+    spaceModel: SpaceModelEntity,
+    queryRunner: QueryRunner,
+  ): Promise<SubspaceProductItemModelEntity[]> {
+    try {
+      await this.validateTags(dtos, queryRunner, spaceModel);
+
+      const productItemModels = await Promise.all(
+        dtos.map(async (dto) => {
+          const productItemModel = await this.findOne(dto.productModelUuid);
+          productItemModel.tag = dto.tag;
+          return productItemModel;
+        }),
+      );
+
+      return (await this.saveProductItems(
+        productItemModels,
+        this.subspaceProductItemRepository,
+        queryRunner,
+      )) as SubspaceProductItemModelEntity[];
+    } catch (error) {
+      this.handleException(
+        error,
+        'Failed to save Subspace Product Item Model.',
+      );
+    }
+  }
+
+  async deleteProductModel(
+    dtos: DeleteProductItemModelDto[],
+    queryRunner: QueryRunner,
+  ): Promise<string[]> {
+    try {
+      const productItemModels = await Promise.all(
+        dtos.map(async (dto) => {
+          const productItemModel = await this.findOne(dto.productModelUuid);
+          productItemModel.disabled = true;
+          return productItemModel;
+        }),
+      );
+
+      const response = (await this.saveProductItems(
+        productItemModels,
+        this.subspaceProductItemRepository,
+        queryRunner,
+      )) as SubspaceProductItemModelEntity[];
+
+      return response.map((item) => item.uuid);
+    } catch (error) {
+      this.handleException(error, 'Failed to modify SpaceModels.');
+    }
+  }
+
+  async findOne(uuid: string): Promise<SubspaceProductItemModelEntity> {
+    const productItemModel = await this.subspaceProductItemRepository.findOne({
+      where: { uuid },
+    });
+
+    if (!productItemModel) {
+      throw new HttpException(
+        `Product item model not found for ${uuid}`,
+        HttpStatus.NOT_FOUND,
+      );
+    }
+
+    return productItemModel;
+  }
+
+  async modifyProductItemModel(
+    dto: ProductItemModelModificationDto,
+    productModel: SubspaceProductModelEntity,
+    spaceModel: SpaceModelEntity,
+    queryRunner: QueryRunner,
+  ): Promise<IModifiedProductItemsModelsInterface> {
+    const productItemModels: IModifiedProductItemsModelsInterface = {};
+
+    try {
+      if (dto.add) {
+        productItemModels.new = await this.createProductItemModel(
+          dto.add,
+          productModel,
+          spaceModel,
+          queryRunner,
+        );
+      }
+      if (dto.update) {
+        productItemModels.update = await this.updateProductItemModel(
+          dto.update,
+          spaceModel,
+          queryRunner,
+        );
+      }
+      if (dto.delete) {
+        productItemModels.delete = await this.deleteProductModel(
+          dto.delete,
+          queryRunner,
+        );
+      }
+      return productItemModels;
+    } catch (error) {
+      this.handleException(error, 'Failed to modify SpaceModels.');
+    }
+  }
+
+  private handleException(error: unknown, defaultMessage: string): never {
+    if (error instanceof HttpException) {
+      throw error;
+    }
+    throw new HttpException(
+      (error as Error).message || defaultMessage,
+      HttpStatus.INTERNAL_SERVER_ERROR,
+    );
+  }
 }
diff --git a/src/space-model/services/subspace/subspace-product-model.service.ts b/src/space-model/services/subspace/subspace-product-model.service.ts
index 9dfe733..4e145bc 100644
--- a/src/space-model/services/subspace/subspace-product-model.service.ts
+++ b/src/space-model/services/subspace/subspace-product-model.service.ts
@@ -50,7 +50,7 @@ export class SubspaceProductModelService extends BaseProductModelService {
         spaceProductModelDtos.map(async (dto, index) => {
           const savedModel = savedProductModels[index];
           const productItemModels =
-            await this.subspaceProductItemModelService.createProdutItemModel(
+            await this.subspaceProductItemModelService.createProductItemModel(
               dto.items,
               savedModel,
               spaceModel,