Manually Blocking POs from SRM

Question

Hi All,
I posted this question on the Financial Forum, but no one there was able to assist and I thought since this is so tightly integrated with MM, someone here might be able to assist. . .
I understand that in tcode MRBR, when we select the radio button: Manual Payment Block, we can see those invoices blocked at the Header Level. (tcode MIR4, Payment tab, Pmnt Block field)
It seems that only those invoices blocked at the time of invoice data entry (MIRO) are displayed. But many times, we need to manually block the invoice AFTER it has already been entered and those are not displaying in MRBR.
We are using SRM Extended Classic Config (if that matters) and are on ECC 6.0 SP10. To block the invoice after the invoice has already been posted, we need to use tcode FBL1N to find the coordinating FI doc # and block it in that transaction code. When we do that, it does show the block on the coordinating MM invoice number when viewing in MIR4, but it doesn't show in MRBR. In other words, table BSEG shows the block, but table rbkp_blocked does not.
Is there another way to manually block at the header level AFTER the invoice has been entered?? (so that it shows on the MRBR report). Or is this a possible error with SAP's FI/MM integration?
I thought I'd post my question here first before submitting an OSS message.
I'd appreciate any guidance on this,
Cindy

Answer 1

So you are suggesting that we need to do some additional coding by utilizing this user exit to be triggered by FBL1n, when we manually block using FBL1n??