500 internal server Error - Action not ssupported -Wcf MIGRATION FROM soap1.1 to soAP1.2

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My question: I am trying to run the soap12 version in post soap request with headers soapAction :urn:XXX and content-type :application/soap+xml but getting response as mismatch contractfilter but same service works fine in SOAPUI.Please advice

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How I found the problem:

I’ve already tried:

@aviation-explorer-56 Welcome to the Community :partying_face: Oh sorry I understand that. May be you can try using the content-type : text/xml; charset=utf-8
alongside with the the SOAPAction header.

I tried content-type : text/xml it will get 415 media type error and should be application/soap+xml