Use this consolidated error code index to navigate HTTP, AWS, Azure, and GCP failures from a single technical library. Each entry links to source-backed diagnosis, root-cause patterns, and production-focused remediation steps. Start broad, then drill into provider pages, operational categories, compare guides, or incident playbooks.
62 error codes available
100 error codes available
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22 error codes available
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AWS Unavailable (Unavailable) means the service is temporarily unavailable. In AWS APIs, this error returns HTTP 503.
AWS InvalidAction (Invalid Action) means the action or operation requested is invalid. In AWS APIs, this error returns HTTP 400.
Amazon S3 InvalidRequest means S3 received and parsed the request, but rejected its operation semantics, endpoint mode, headers, or bucket context as incompatib...
AWS S3 NotImplemented (HTTP 501) occurs when a request uses a feature or header that is recognized by the S3 protocol but not implemented by the specific endpoi...
AWS OptInRequired (Opt In Required) means the account or access key is not subscribed/opted in to the target AWS service. AWS common errors define it as "the AW...
AWS AccountProblem (Account Problem) means there is an AWS account-level issue that prevents the operation from completing and AWS directs you to contact Suppor...
AWS AmbiguousGrantByEmailAddress means the ACL grantee email address is associated with more than one AWS account, so Amazon S3 cannot resolve a single principa...
AWS BadDigest means the Content-MD5 or checksum value in the request does not match what Amazon S3 received for that payload (HTTP 400).
AWS CredentialsNotSupported (Credentials Not Supported) means the request type does not support credentials. In Amazon S3, this error returns HTTP 400.
AWS CrossLocationLoggingProhibited (Cross Location Logging Prohibited) means server access logging cannot target a bucket in another AWS Region. In Amazon S3, t...
AWS EntityTooLarge (Entity Too Large) means the proposed upload exceeds the maximum allowed object size. In Amazon S3, this error returns HTTP 400.
AWS EntityTooSmall (Entity Too Small) means a multipart upload part is below the minimum allowed size (except the final part). In Amazon S3, this error returns...
Amazon S3 NoSuchUpload means the multipart upload ID in the request no longer identifies an active multipart upload session.
Amazon S3 RequestTimeout means the request connection or body transfer did not progress quickly enough for S3 to continue processing it.
AWS ExpiredToken (Expired Token) means the provided token has expired. In Amazon S3, this error returns HTTP 400.