The profile 'AR: Update Due Date' determines whether you can update the due dates of debit items in the Transaction window.
Available values for this profile are:

• Yes  Receivables lets you update the due date of a debit item in the Transaction window to any date that is greater than the transaction date of this item. If you change the due date of your debit item, Receivables does not update the terms of this item. 
• No  Prevents you from updating the due dates of debit items in the Transaction window. 

The value for this option can be set by the system administrator at the site, application, responsibility, and user levels, but cannot be updated by the user.

Auto invoice

Balance Due: Receivables selects and prints transactions from the balance due range you specify.

Base Due Date on Trx Date: Use this parameter to indicate whether you want AutoInvoice to calculate invoice due dates based on transaction dates or based on either the ship date, sales order date or rule start date. The default for this parameter is Yes, which will prompt AutoInvoice to use the transaction date to calculate due dates for your invoices.

If you elect to change the value to No, AutoInvoice will calculate due dates using the following algorithm:

AutoInvoice will first compare the ship date in the interface table to the transaction date plus the number of days you enter in the Due Date Adjusted Days parameter. If the ship date does not exist, AutoInvoice will use the sales order date or rule start date to compare to the transaction date plus the number of days in the Due Date Adjusted Days parameter.

AutoInvoice will then set the due date equal to whichever date is greater. For example: