How can we have the Invoice Date (not the G/L Date) default in for the Serv/Tax Date on AP vouchers

To set up the option to allow the service/tax date to default in using the Invoice Date is in the voucher server XT0411Z1. Go to the Processing Options of P4314 that you are using and any other voucher entry programs that you may be using. Look to see what version of XT0411Z1 is being used. Go to the versions list on G81 #2 and and pull up Form ID XT0411Z1 and locate the version that was that was referred to in the processing options for P4314 and the other voucher entry programs. Set processing option 1 in XT0411Z1 to a value of 1 to have the invoice date