OData endpoint Http status codes

应用到: CRM 2015 on-prem, CRM Online

Http status codes returned by the REST endpoint are described in the following table. The status codes follow RFC 2616 Hypertext Transfer Protocol -- HTTP/1.1.

Status Code	Text	Cause
200	OK	The request is served.
400	Bad Request	The request could not be parsed successfully because of a syntactically or semantically incorrect URI.
401	Unauthorized	Authentication is required and has not been provided.
403	Forbidden	User does not have privileges to access the entity
404	Record Not Found	The record does not exist for the given query. OR The length of the URI exceeds the maximum allowed length for the browser. For Internet Explorer7 & 8 this is 2,048 characters.
405	Method Not Allowed	A request cannot be used for this record.
406	Not Acceptable	The requested format specified in the accept header cannot be satisfied for the entity/entity container/entity set.
413	Request Entity Too Large	The request attempts to set too much data, or the requested range contains too many rows, returned data is too big.
500	Internal Server Error	Internal Error
503	Service Unavailable	Service Unavailable

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