I am trying to do delta upload for FI-CA business partner items 0FC_BP_ITEMS. I see there is a documentation say "Before you start the delta extraction, you should update the delta queue for this DataSource in the plugged-in OLTP system using transaction FPOP.". After my initial load, I made a new posting. And then I ran FPOP, and then I run delta update. But I am told "No new data since the last delta update". So seems delta did not get my new posting. Is there anybody can give some advice, or tell me how to use FPOP? I am not sure how to create the Variant in FPOP. Thanks a lot!