Thanks for clarrifying your concern, SVOhio. Not to worry, I'm here to help you with this.
For payments processed outside QuickBooks, you'll have to apply them towards the vendor bills to mark them as paid.
Here's how:
For further guidance, please see this article: Pay Bills in QuickBooks Desktop.
You can also learn more about the Accounts Payable workflows in QuickBooks Desktop. This helps you track the money you owe your vendors.
Additionally, you can run and customize the Unpaid Bills Details report to see all the bills related to each vendor. To do this, I suggest following these steps.
In case you'll need assistance in managing your vendor transactions in QuickBooks, please get back on this thread. I want to ensure everything is taken care of.