DFHREQUEST is a container of DATATYPE(CHAR) that contains the request message that is processed in the request phase of a pipeline. If the message was constructed by a CICS-supplied SOAP message handler, and has not been changed subsequently, DFHREQUEST contains a complete SOAP envelope and all its contents in UTF-8 code page.
In this situation, the normal protocol is to return DFHREQUEST to the pipeline with the same or modified contents. Processing of the pipeline's request phase continues normally, with the next message handler program in the pipeline (if there is one).
As an alternative, your message handler can delete container DFHREQUEST, and put a response in container DFHRESPONSE . If you do this, the normal sequence of processing is reversed, and the processing continues with the response phase of the pipeline.