# Cannot revise transaction with invalid tax identifier

You're trying to revise a transaction with an invalid tax identifier.

---

## Example

```json
{
  "error": {
    "type": "request_error",
    "code": "transaction_cannot_be_revised_with_invalid_tax_identifier",
    "detail": "Cannot revise transaction with an invalid tax identifier where there is already a valid one.",
    "documentation_url": "https://developer.paddle.com/errors/transactions/transaction_cannot_be_revised_with_invalid_tax_identifier"
  },
  "meta": {
    "request_id": "00000000-0000-0000-0000-000000000000"
  }
}
```

## Details

| Attribute | Value |
| --- | --- |
| Status code | 400 |
| Error code | `transaction_cannot_be_revised_with_invalid_tax_identifier` |
| Error message | Cannot revise transaction with an invalid tax identifier where there is already a valid one. |

## Common causes

- The transaction is already associated to a valid tax identifier.
- The new tax identifier is invalid.

## Common solutions

- Do not specify a new tax identifier.
- Pass a valid tax identifier.