Problem with SOAP request

I'm getting the error: "Server did not recognize the value of HTTP Header SOAPAction:"

Does it necessarily say the problem is with my soap action? or can it also be in my soap message?

I want to debug this issue but don't know whe开发者_StackOverflowre to start... =\

10x

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You need to check a couple of things:

1. Did the namespace for the web service change? - This can generate the error because the deserialization of the xml being posted to the service fails due to a mismatch in the namespaces of the posted xml and the namespace the service expects.

2. Did the method being requested get removed from the web service? - Not likely but a missing method might cause the same problem. More likely #1.

Any of these will be fixed by updating your application's reference to the wsdl of the web service.

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As the message says, there is a SOAPAction header in your HTTP request and the server isn't recognizing the value. Can you examine or modify the headers being sent in the request?