When you enter the Voucher representing the Statement received from the Vendor, enter the Invoice Date of the Statement in the Invoice Date field in Voucher Entry. This is the date Orion will use to calculate the Due Date based on the Terms Code assigned to the Vendor.  When you enter the line of distribution to the Client-Matter, the Date field will default to the Invoice Date entered for the voucher.  However, you may override this date with any date you desire.  The date you enter in this field is the date with which the Client Advance Transaction will be created and saved in work in process.