From the onchange of reimbursement amount , call an activity where report definition is called. The report definition results can be stored in pyPageName which is given in the parameter. Based on the obtained result you can either call the Validate rule using Obj-Validate method where you can check or you can directly check in the activity itself.
I'm trying to set up the data page sourced from a report definition, but I can't figure out how to configure the response data transform. I've attached screenshots of my data transform and the error I get on my clipboard when I run a case.