> For the complete documentation index, see [llms.txt](https://docs.fairway.global/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.fairway.global/developers/build-on-evm/attestation-led-compliance-eas-erc-1271-erc-3643/reason-codes.md).

# Reason Codes

* `0` → OK
* `1001` → Stale sanctions epoch
* `1002` → Invalid issuer/signature
* `2001` → KYC too old
* `2002` → Jurisdiction not allowed
* `2003` → Risk score too high