Making payments to a supplier which are not not related to a specific invoice

I've got an to share with you, siskin77.

In QuickBooks Online, the ideal way of a recording payment to a supplier is to click the Make payments link on the open bill. This way, you have the correct workflow for your vendor transactions. 

Since you don't want to allocate the payments to the bills, you can record a journal entry. Make sure to debit the Creditor account and credit the account used from the category section of the bill. This will update the running balance in the supplier's page. Before doing this process, I'd recommend consulting your accountant to make sure your reports are accurate.

To create a journal entry, here's how:

1. Go to + New > Journal entry.
2. Set the Journal date.
3. In the first line, select the Creditor account and put the amount in the Debit field. Then, add the supplier from the Name drop-down.
4. Choose the account used from the bill and enter the amount in the Credit column.
5. Hit Save or Save and close.

Here's a sample screenshot of how the transactions would look like:

For more information about supplier payments, check out this article: Enter bills and record bill payments in QuickBooks Online.

Please let me know if there's anything else you need. I'm always around to provide details and instructions. Have a great day!