How to record a payment on a supplier invoice?

You can mark supplier invoices as paid in a couple of ways.

Mark invoice manually as paid

1. Open an Invoice
2. Scroll down to section Payments
3. Click Add Payment
4. Adjust details if needed, Select Payment Method and Bank Account and click Add Payment

Bulk mark invoices as paid

Another option is to mark as paid in bulk via generating a payment file.

1. Go to Purchases > Archive
2. Select items you would like to make as paid. Use advanced search if it is needed to filter invoices.
3. Click Generate Payment file at the bottom of the page
4. Check "Mark Invoice as paid"
5. Click Create

The third way is to reconcile it with the payment from the bank statement.