A third party dealer system provided a wsdl file and says that to use it and provide a endpoint to them, to that endpoint they submit a request and response has to be sent from M3.
On on premise version, partner admin has webservice option to deploy the wsdl file and http sync in channel receives the soap request, MEC map will be triggered and response is generated and sent to it. I have done this success fully in the past.
Can someone help how this could be achieved in Multi tenant?