503503 Service Unavailable
The server is temporarily unable to handle the request due to maintenance or overloading.
201The request has been fulfilled and a new resource has been created as a result.
A POST or PUT request successfully created a new resource. The server typically returns the new resource in the response body and a Location header pointing to it.
No fix needed. This is a success response. Check the Location header or response body for the URI of the newly created resource.
503The server is temporarily unable to handle the request due to maintenance or overloading.
402The request requires payment. This status code is reserved for future use but is used by some APIs to indicate billing issues.
413The request body exceeds the size limit configured on the server.
406The server cannot produce a response matching the list of acceptable values defined in the request's Accept headers.
101The server is switching protocols as requested by the client via an Upgrade header.
431The server refuses the request because one or more header fields are too large.