Acceptance
You can set up a customer acceptance rule that requires additional information to be recorded on invoice lines of the linked lines on the revenue contract. For example, a proof-of-delivery number can be required for an invoice to be flagged as accepted.
If an invoice is not flagged as accepted, the invoice revenue is always deferred. If the invoice is flagged as accepted, the invoice revenue is always recognized.
The invoice acceptance date is also important because you can set an effective date for the revenue calculation. If you run the revenue calculation before the invoice acceptance date, then even if the invoice is flagged as accepted, the revenue from the invoice is still deferred. Otherwise, the revenue of the invoice is recognized.