# `PAYLOAD_INTEGRITY_MISMATCH` Cannot resend: the original message was not kept

Source: https://checkslip.com/en/problems/payload-integrity-mismatch

- **HTTP status**: `409`
- **Credit**: No credit taken

## Meaning

The message first sent is no longer kept, and we never send data that differs from the original, so nothing was resent.

## Fix

This delivery cannot be resent. To get the result, call `GET /api/slips/{request_id}` with the lookup's request_id shown on the delivery.

## Example response

```
{
  "type": "https://checkslip.com/problems/payload-integrity-mismatch",
  "title": "Cannot resend: the original message was not kept",
  "status": 409,
  "code": "PAYLOAD_INTEGRITY_MISMATCH",
  "instance": "0192f3a4-7b1c-7d2e-8f30-4a5b6c7d8e9f"
}
```