How do I avoid duplicate documents in my account?

Table of contents:

• Accounts payable
• Accounts receivable

Accounts payable

Settings > Inbound > Accept

1. Check for duplicate documents-> ON
   A warning is displayed when you import a duplicate:
   
   
   Note: to determine duplicates, the following elements are checked:
   1. Amount
   2. Invoice number
   3. Invoice date
   4. Supplier
2. Block archiving of duplicate documents -> ON 
   Prevents duplicate documents from getting accepted and archived again.

Accounts receivable

Settings > Outbound

1. Check for duplicates -> ON
   The total amount and invoice number get checked to determine if a document is a duplicate.
   
   
2. Block duplicate to be sent -> ON
   Prevents you from sending an invoice that has already been sent to your customer.