Standard HTTP Responses

Code	Name	Description
200	OK	The request was successful.
201	Created	The resource was successfully created. Confirms a success when creating a new employee, time off request, etc.
204	Updated	The request was successful with no content

Code	Name	Description
400	Bad Request	The request was invalid or could not be understood by the server. Resubmitting the request will likely result in the same error.
401	Unauthorized	This can be a result of a missing API key, incorrect key name, or invalid key value etc
403	Forbidden	The application is attempting to perform an action it does not have privileges to access. Verify your API key belongs to an enabled user with the required permissions.
404	Not Found	The resource was not found with the given identifier. Either the URL given is not a valid API or the ID of the object specified in the request is invalid.
406	Not Acceptable	The request contains references to non-existent fields.
409	Conflict	The request attempts to create a duplicate. For employees, duplicate emails are not allowed. For lists, duplicate values are not allowed.
429	Limit Exceeded	The account has reached its employee limit. No additional employees could be added.

Code	Name	Description
500	Internal Error	The server encountered an error while processing your request and failed. Retrying may be appropriate.
502	Gateway Error	The load balancer or web server had trouble connecting to the server. Please try the request again.
503	Unavailable	This endpoint is currently unavailable. Retrying may be appropriate. Commonly, this is due to rate limiting, and a "Retry-After" header may be available.