Hi there, theguyuphigh1979.
The option to delete a contact on your customer's list isn't available. However, we can deactivate them so we can hide them on the list.
Let me guide you with these steps:
- From the Sales tab, select Customers.
- Select your customer's name.
- Click the Edit button.
- Click the Make inactive button.
- Select Yes.
In case you want to take and process payments online, you can check this article: Take and Process Payments in QuickBooks Online.
Let me know if you have questions when processing payments online. I'll be around to help.