Rebates causing distorted monthly revenue
When an invoice is issued for the following month but then the booking gets cancelled in the current month - the revenue will be posted in the following month but the revenue of the current month will be reduced.
In other words there will be 'fake' revenue in the following month but the revenue in the current month will be lower that it actually is.
This is also affectig VAT.
The rebate should be posted on the same day as the items are consumed and not on the day of the cancellation.