product · inferred from evidence
000 - Unknown: Unauthorised
An error code returned by Adyen API for unauthorized access due to incorrect API key or credentials.
- Adyen: Unknown Unauthorised - The API key or Auth credentials are incorrect
Resolves Adyen API 401/403 responses with errorCode 000 Unknown Unauthorised. Covers matching the API key to the right environment (TEST keys on test endpoints, LIVE keys on live), generating a fresh key in the Customer Area, and confirming