HTTP status codes

Here's a list of the status codes used in Pipedrive:

Status Code	Name	Description
200	OK	Request fulfilled
201	Created	New resource created
400	Bad Request	Request not understood
401	Unauthorized	Invalid API token
402	Payment Required	Company account is not open (possible reason: trial expired, payment details not entered)
403	Forbidden	Request not allowed. User account has reached a limit for an entity.
404	Not Found	Resource unavailable
405	Method not allowed	Incorrect request method
410	Gone	Old resource permanently unavailable
415	Unsupported Media Type	Feature is not enabled
422	Unprocessable Entity	Webhooks limit reached
429	Too Many Requests	Rate limit has been exceeded
500	Internal Server Error	Generic server error
501	Not Implemented	Non-existent functionality
503	Service Unavailable	Scheduled maintenance