AP Manager splitting payments when invoices are exactly same structure.
We've had an issue when multiple invoices for a specific supplier are periodically splitting during the payment process.
I've even gone as far as taking a batch of almost exact invoices for a specific supplier and pay them.
I would pay the group of invoices and find the batch created one payment, then I would cancel that payment and reprocess again and again only to find on the 9th time processing, it split the payment.
It seems to be a bug in the code and i've searched My Oracle support and we've opened an SR with no avail but I'm sure others should have experienced this issue.