# Introduction
Following https://github.com/twentyhq/twenty/pull/12852
Discovered that:
- `relationCreationPayload` does not seem to be validated through the
input decorators
```ts
// TODO @prastoin implement validation for this with validate nested and dedicated class instance
@IsOptional()
@Field(() => GraphQLJSON, { nullable: true })
relationCreationPayload?: {
targetObjectMetadataId: string;
targetFieldLabel: string;
targetFieldIcon: string;
type: RelationType;
};
```
- Sending an unknown `targetObjectMetadataId` generates an
`internal_server_error` `500` @guillim on the go
## Coverage
```ts
PASS test/integration/metadata/suites/object-metadata/failing-field-metadata-relation-creation.integration-spec.ts
Field metadata relation creation should fail
✓ relation when targetFieldLabel is empty (109 ms)
✓ relation when targetFieldLabel exceeds maximum length (100 ms)
✓ relation when targetObjectMetadataId is unknown (97 ms)
✓ relation when targetFieldLabel contains only whitespace (103 ms)
✓ relation when targetFieldLabel conflicts with an existing field on target object metadata id (108 ms)
Test Suites: 1 passed, 1 total
Tests: 5 passed, 5 total
Snapshots: 5 passed, 5 total
Time: 2.629 s, estimated 3 s
```
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