How to store incoming request field value in a context variable in case of error/failure in XSLT?

[Daisy2]

Hi, How to write an XSLT to fetch a particular attribute value from an incoming XML request and store in a context variable in Datapower ?

[dchiesa1]

Are you using Datapower?  And asking how to perform a specific thing in DatapoweR? 

This is a forum focused on Apigee, Not datapower. I think you might have better luck getting answers if you asked elsewhere.