Payments to Suppliers

Enter Supplier Payment Entry against a Supplier invoice.

Select a supplier from drop-down combo-box.
Select the bank account the deposit should be made from. List of Bank Accounts can be setup in Banking and General Ledger module.
If needed, change the date of the deposit.
Enter the full amount of any additional bank charges (NSF charge, Cheque certification, etc).
Enter the discount give to the supplier (the discount they are qualified to take will be shown above this line).
Enter the amount of the payment against one or few supplier's documents (if any).
Optionally, enter a memo/note about the deposit. This may be something as simple as the type of payment(VISA/Mastercard/Direct Deposit/Cheque/etc.) or cheque number.

Use Payments if you want to book the payment against a specific account.
Say you need to add a payment from a supplier to settle a credit note you need to use the 'Deposits' screen under 'Banking and General ledger' record the payment. Make sure you select 'From: Supplier' and then choose the supplier in the drop-down. You will then be able to allocate this payment to the credit note under 'Purchases' - 'Allocate Supplier Payments or Credit Notes'.