Hello there, @cravenbakery!
You can categorise the weekly payments you received depending on how you are tracking your sales transaction. If you tracking them with an invoice, you'll have to select the Find Match function upon categorising them to avoid creating a duplicate on records.
But if you haven't created an invoice, you can simply select the Add function to categorise them. You can read through this article to learn more: Categorise and match online bank transactions in QuickBooks Online.
Lastly, here's a few articles you can read to help manage your customers and sales: Manage Customers and Income for QuickBooks Online.
Keep me posted in the comments if you have any other questions. I'll be here to lend a hand.
