How to reverse revenue recognition through credit memos

Hi Colleagues,

We are running eBis 12.1.3. We have a scenario I hope you can help us with.

We raise Invoices in AR using Accounting Rules to recognise revenue across multiple periods. We are using the Daily Revenue Rate method to split the revenue amount across a total number of days and then apportion it across each period.

Question is: if we receive a cancellation we want the ability to "reverse" the accounting entries in each period according to the same revenue recognition calculation. We are trying to use a Credit Memo, but the revenue is recognised immediately, which we don't want.