Issued invoices:
open the Issued Invoice Types form from the Sales module –> Document Types,
in the record detail on the Invoice tab, check the Automatically generate warehouse documents and require entry of serial numbers flag,
save the change by clicking Save and Close.
Received invoices:
open the Received Invoice Types form from the Purchase module –> Document Types,
in the record detail on the Invoice tab, check the Automatically generate warehouse documents and require entry of serial numbers flag,
save the change by clicking Save and Close.
