Sometimes, a vendor invoice can be in a pending status for some time, even extending beyond the closing date for the period. When you’re ready to post the invoice after the period has closed, you won’t be able to use the original posting date. As a result, an Accounts payable clerk must change all the posting dates on “unapproved” invoices to the new period (next month). This parameter lets the system change the posting date automatically, based on your business needs. As a result, the due date, cash discount date and exchange rate of the invoice can be adjusted accordingly.