If a transaction has no revenue, how should COGS get recognised?

Oracle Revenue Accounting 12.2.10

We have a number of revenue transactions with zero revenue. Consequently, the Manage Revenue button is missing, which is probably expected behaviour.

However, in order to move COGS out of deferred, we need to recognise revenue. Because the button is missing, we can't go through the step of 'recognising' the zero dollar lines, which would recognise COGS. Therefore, the COGS are stuck in deferred.

Any suggestions how to proceed to getting the COGS recognised?

Thanks!