## createConstraintIssue() function

**Signature:**

```typescript
export declare function createConstraintIssue(expression: string, constraint: Constraint): OperationOutcomeIssue;
```

## Parameters

| Parameter  | Type       | Description  |
|------------|------------|--------------|
| expression | string     |              |
| constraint | [Constraint](/content/docs/sdk/core.constraint) |  |

**Returns:**

OperationOutcomeIssue

- [createConstraintIssue() function](/content/docs/sdk/core.createconstraintissue#createconstraintissue-function/index.html)
- [Parameters](/content/docs/sdk/core.createconstraintissue#parameters/index.html)