I really like the Deferral Code functionality as it allows us to allocate expenses much easier than with recurring journals.

In some scenarios, however, we still need to manually adjustment the Start Date. E.g. we receive invoices in February covering the entire year or we receive an invoice in April about the previous quarter.

Currently we can only choose the Start Date to be the Posting Date, Beginning of Period, End of Period and Start of Next Period.

Ideally I would like to be able to use a Date Formula like with Payment Terms to determine the Start Date although I guess that could be a little complex to some users...

Alternatively being able to shift the start date by a specified number of periods would work too, e.g. picking Beginning of Period and then -3 as a shift (probably in an extra field). Would make the Start of Next Period superfluous.