Bonus condition deleted from invoice by creating accounting document

Hello,

I have an issue regarding rebate management.

I created a bonus agreement in VBO1 and a related invoice.

By creating and saving the invoice, the expected bonus condition is determined from the agreement. So far, so good.

BUT, by taking this invoice to accounting, the bonus condition is deleted!?!?! The FI document is created, but without the accrual items...

I have no idea where this comes from.

Any idea?

chris

T