Here is my setup
Data Mapper
Workflow:

Everything works. Now I would like to get the report for a different contract id than the default.
I can get the parameter in the request by using XMLGet; however I am not sure where and how to populate the value into the ContractID parameter I configured in data mapper and use it to pull data from database for the different contract id.
I am new to this and would appreciate any help I can get.
Thanks