402 Payment Required is a nonstandard client error status response code that is reserved for future use.
Sometimes, this code indicates that the request can not be processed until the client makes a payment. Originally it was created to enable digital cash or (micro) payment systems and would indicate that the requested content is not available until the client makes a payment. However, no standard use convention exists and different entities use it in different contexts.
402 Payment Required
HTTP/1.1 402 Payment Required Date: Wed, 21 Oct 2015 07:28:00 GMT
|RFC 7231, section 6.5.2: 402 Payment Required||HTTP/1.1: Semantics and Content|