GR/IR

SAP中的GR/IR就是最主要的FI和MM对接中的一部分。涉及到vendor payment的问题也很多，特别是系统经常会block invoices，虽然系统有backgound jobs to release invoice. However, there are still some issues regarding releasing invoices. We have a quite few cases from users about why the system blocks invoices without reasons. We have the answer from SAP company about this. Basically they say our SAP version is quite low 4.5A. With higher version SAP, there are lots of enhancements. No wonder, that is why sometime we can't figure out what is going on with these blocked invoices. We have to release them manually.
But there are still a quire few reasons why invoices are blocked. But they are not obvious.
1: Sub-credit, if uses key in normal credit for sub credit. Then the invoice will be blocked with that credit because the quantity difference.
2: Good receipt is later than invoice received. This sometimes cause the price difference. Because GR doesn't carry price for goods. If the invoice is keyed in, the GR will follow the IR price. Maybe IR price is different with PO price. Then the system will block the invoice.
3:Check the good receipt date with IR date, maybe sometime, the background job hasn't been run to release blocked invoices.