Payment Scenario

Hello,

We have two databases in SAP 9.1 PL 09 where the customers are common.

Invoices are being sent from both databases, but the customers many a time combine the amount in one cheque and we deposit the cheque in any bank of our choice. For example

1. A/R Invoice for $20000 from Database 1 for Customer X
2. A/R Invoice for $10000 from Database 2 for Customer X
3. A/R Invoice for $12000 from Database 2 for Customer X
4. Customer X sends combined cheque of $ 42000/-.

How to do this scenario in SAP B1?

Regards

Kalli