# SY75028: Post end timing should be greater than start timing

Source: https://developer.synup.com/errors/sy75028

Documented under Promotional Posts.

```json
{
  "data": null,
  "errors": [
    {
      "message": "Post end timing should be greater than start timing",
      "context": {},
      "code": "SY75028"
    }
  ]
}
```