Hello Hema,
Do you have a mentor availalbe to you to help with your interface, it sound like you have a simple interface issue with a couple of fields (potentially requiring some surface automation), I am also very concerned about your design if you are planing on calling a Blue Prism webservice in a syncronious way (performing all tasks within the web service procoss) rather than in an asyncronious way (simply adding items to a Work Queue to be performed by a seperate BP Process.
All new users should have a mentor availabe to them to help with interfaces and designs, that is the agreed accreditation training path for all Partners/Clients. If you have no mentor you should raise it as a risk with your management.