> ## Documentation Index
> Fetch the complete documentation index at: https://docs.syntage.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Credentials

SAT credentials are the CIEC or e.firma credentials Syntage uses to access SAT data for an entity's RFC. After validation, they can be used by SAT extractions to retrieve the data you request.

Use the credential `status` to decide whether a credential can be used for new extractions:

| Status     | Meaning                                                            |
| ---------- | ------------------------------------------------------------------ |
| `pending`  | The credential has been received and is waiting for validation     |
| `valid`    | The credential was accepted by SAT and can be used for extractions |
| `invalid`  | SAT rejected the credential during validation                      |
| `disabled` | SAT reported the credential as disabled or otherwise unrecoverable |
| `error`    | Validation failed because of an unexpected error                   |

If a credential becomes invalid or validation fails unexpectedly, use the revalidation endpoint after the credential has been corrected or SAT availability has recovered.