I created a VS where the model is expected to delete few repeating section of incoming request xml and consider only the second xml section elements.
I added a Request Data Manager to delete those <details> elements..but when I remove those elements in my request xml in one of the test cases, the response says
"<faultstring>The LISA VSE service could not match your request to a recorded request. Consider expanding your service image.</faultstring>"
Note: In request data manager I have deleted the _1, _2s and just kept without the instances as I need all the instances to be deleted and request may have n number of these repeating <details> section.
Does, your incoming request have multiple <details> elements ? if so, you will see "<faultstring>The LISA VSE service could not match your request to a recorded request. Consider expanding your service image.</faultstring>" when you test against the model.
One thing you can do is add a JS step in your VSM that will look at the incoming request, and remove any extra <detail> elements. Save that modified request as lisa.vse.request. The VSI should be modified to match the request.
If possible please share a screen shot of the request arguments from your VSI as well as the modified request xml which gives the <faultstring> response
Instead of deleting the details elements, I would suggest to use Request Data Manager to "Keep" the incoming attributes like account_no and account_name.