Every documented Supabase error with causes, fixes, and code examples, plus the Supabase platform limits that trigger errors. Part of DB Error Reference.
invalid_credentials Invalid CredentialsPGRST116 Multiple or Zero Rows for a Singular RequestPGRST301 Invalid or Undecodable JWTemail_not_confirmed Email Not Confirmeduser_already_exists User Already ExistsPGRST205 Table Not Found in Schema Cachetoken_expired Token ExpiredEntityTooLarge Upload Exceeds Maximum Object SizeNoSuchBucket Storage Bucket Not Foundrefresh_token_not_found Refresh Token Not Foundover_email_send_rate_limit Over Email Send Rate Limitotp_expired Otp Expiredweak_password Weak Passworduser_not_found User Not FoundPGRST203 Ambiguous Function Overload