SOAP Webservice namespace with # before action

  • 23 September 2022
  • 3 replies


I’m implementing my own SOAP Webservice based on the provided WSDL.


At the provided WSDL the trailing slash is replaced by a # before the action.


At my implementation the action URL si the following



So the calls to my SOAP Webservice fail with the following error:

System.Web.Services.Protocols.SoapException: Server did not recognize the value of HTTP Header SOAPAction:


I’ve already added my custom music service to the device at the APP but I get no calls to the API


My Web Service is implemented with C# ASMX

3 replies

Why reinvent the wheel?

Userlevel 7
Badge +22

If you are going to post StackOverflow-type questions here, please include the full request/response payload.

Yes, you are so right!

Somehow I've missed this repositories.


I’ll take a look to them
Much appreciated for your input!