At the moment it is not possible to configure Deferral Templates in a way, that the deferrals are posted in previous posting periodes. The first possible starting-date in deferral templates is "beginning of the current month"

Among my customers it's a common situation, that they get an invoice with an document-/posting-date in the current posting-period but the expediture was actually done in the previous month(s)

for example:
Invoice for freight charges is dated Oct. 3rd
the freights itself were done in September.
So a deferral to september is necessecary.

it is possible to adapt the deferral plan manually for each invoice; yet it would be great if there was the possibility to create a deferral template eg. "deferral in prceeding month"