From where GL date is picking by autoinvoice master program for AR invoice

Hello Experts,

Need your help to understand the setups

From where GL date is picking by autoinvoice master program for AR invoice?

Most of the time for RMA type invoice, ship actual date is null, hence system is considering the sales order date as GL date but some time sales order date  is old date (from Closed period date), hence invoice got stuck in interface with error as "GL period is not an open".

is there any setups from which we can take system date as a GL date if it is RMA invoice or when ship actual date is null ?