Hi,
I have a difficult customer who likes to split hairs 
I'm trying to figure whether the billing blocks their business needs to set on invoices (with an invoice value smaller than the PO value) is done at header or at item level.
They process inbound invoices in two different ways: either manually using transaction MRBR or through Badi MRM_PAYMENT_TERMS:
| Processing | Difference | Blocked at |
|---|---|---|
| MRBR | Value | ? |
| MRBR | Qty | Item level |
| Badi MRM_PAYMENT_TERMS | Value | ? |
| Badi MRM_PAYMENT_TERMS | Qty | Item level? |
I understand a billing block is issued on item level when it is caused by a difference in quantity between the invoice and purchcase order.
What I don't understand is if the invoice gets blocked on header or item level when the invoice value is smaller than the purchase order values?
Br, Seppo