I have recently implemented an Open AR view on our Org BPs in CRM. It simply gets the open line items from ECC and displays them in a nice popup for our users. I also implemented print preview of the invoices so our users can click the reference doc number and it opens the PDF print preview of the invoice.
This works for CRM billing documents but not ECC.
I was wondering if anyone has done print previewing of ECC invoices in CRm and if so, what approach was taken.