Common Errors

Common Error Code

Here is a reference for all commonly used system error codes

Code	HttpCode	Message
Success
	200	This is the standard “OK” status code for a successful HTTP request. The response that is returned is dependent on the request.
Client Errors
	400	The server cannot understand and process a request due to a client error.
	401	This status code request occurs when authentication is required but has failed or not been provided
	403	Very similar to status code 401, a status code 403 happens when a valid request was sent, but the server refuses to accept it. This happens if a client/user requires the necessary permission or they may need an account to access the resource. Unlike a status code 401, authentication will not apply here.
	404	The most common status code the average user will see. A status code 404 occurs when the request is valid, but the resource cannot be found on the server. Even though these are grouped in the Client Errors “bucket,” they are often due to improper URL redirection.
	429	The HTTP 429 Too Many Requests client error response status code indicates the client has sent too many requests in a given amount of time. This mechanism of asking the client to slow down the rate of requests is commonly called "rate limiting"
Server Errors
	500	Another one of the more commonly seen status codes by users, the 500 series codes are similar to the 400 series codes in that they are true error codes. The status code 500 happens when the server cannot fulfill a request due to an unexpected issue. Web developers typically have to comb through the server logs to determine where the exact issue is coming from.
	502	The server was acting as a gateway or proxy and received an invalid response from the upstream server.

Modified at 2026-08-14 03:10:40