diff --git a/src/space-model/dtos/link-space-model.dto.ts b/src/space-model/dtos/link-space-model.dto.ts
index 07f7674..b22ba06 100644
--- a/src/space-model/dtos/link-space-model.dto.ts
+++ b/src/space-model/dtos/link-space-model.dto.ts
@@ -12,7 +12,7 @@ export class LinkSpacesToModelDto {
   })
   @IsArray()
   @ArrayNotEmpty()
-  @IsUUID()
+  @IsUUID('4', { each: true })
   spaceUuids: string[];
 
   @ApiProperty({
diff --git a/src/space-model/services/space-model.service.ts b/src/space-model/services/space-model.service.ts
index a0e1532..c25fcbd 100644
--- a/src/space-model/services/space-model.service.ts
+++ b/src/space-model/services/space-model.service.ts
@@ -337,13 +337,6 @@ export class SpaceModelService {
         );
       }
 
-      if (!spaceModel.productAllocations.length) {
-        throw new HttpException(
-          `Space Model ${params.spaceModelUuid} has no product allocations`,
-          HttpStatus.BAD_REQUEST,
-        );
-      }
-
       const spaces = await this.spaceRepository.find({
         where: { uuid: In(dto.spaceUuids), disabled: false },
         relations: [
@@ -410,13 +403,6 @@ export class SpaceModelService {
       );
       await this.spaceProductAllocationRepository.save(spaceProductAllocations);
 
-      if (!spaceModel.subspaceModels.length) {
-        throw new HttpException(
-          `Space Model ${spaceModel.uuid} has no subspaces`,
-          HttpStatus.BAD_REQUEST,
-        );
-      }
-
       await Promise.all(
         spaceModel.subspaceModels.map(async (subspaceModel) => {
           const subspace = this.subspaceRepository.create({