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[Home](./index.md) &gt; [@contract-case/case-boundary](./case-boundary.md) &gt; [BoundaryFailureKindConstants](./case-boundary.boundaryfailurekindconstants.md) &gt; [CASE_VERIFY_RETURN_ERROR](./case-boundary.boundaryfailurekindconstants.case_verify_return_error.md)

## BoundaryFailureKindConstants.CASE_VERIFY_RETURN_ERROR property

The user-provided verification function (testResponse or testErrorResponse) failed

**Signature:**

```typescript
static readonly CASE_VERIFY_RETURN_ERROR: string;
```