Web Service Message Limits in AX 2009
By default, the WCF values for maxBufferSize and maxReceivedMessageSize are both 65536 (64K). If you send a request to a document service in Microsoft Dynamics AX and the message size exceeds this value, you’ll see a cryptic error that says something like: “The remote server returned an error: (400) Bad Request.” You may also see an error message that references the maxReceivedMessageSize property. To fix this problem, increase the binding properties maxBufferSize and maxReceivedMessageSize
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Web Service Message Limits in AX 2009
