How to link PO info and invoicing plan info

[former_member455862]

Hi experts,

We have an invoice plan po, and I post an invoice. We need to write a report to link po and invoice.

I know the invoice item table is RSEG, and according to this table I could get the po number and po item.

But for invoice plan po, I need to link invoice plan item level instead of po item level.

As the following two pictures, the po has 3 invocie plans, but the po's invoice has 5 documents.

How can I link the po and invoice?

This is our invoice plan po.

Invoice receipt in po history

Best Regards,

Ray Ding