Hello there, @caboyogafitness.

I have some information about setting up QuickBooks Payments.

If you're using the US version of QuickBooks Online, then we can set up QuickBooks Payments. This way, your client will receive an invoice via QuickBooks. However, if you're using the Global version, we're unable to set up payments in QuickBooks.

To set up QuickBooks Payments using US version, here's how:

1. Log in to QuickBooks Online as an admin.
2. In the Gear menu, select Account and Settings.
3. Select the Payments tab. 
4. Click Learn More, then follow instructions to enter all the information required to activate the service. 
5. Review and acknowledge the Merchant Agreement and pricing.
6. Once done, click the Activate Payments button. 

For your actual guide on how to easily set it up, here's a video to give you the detailed steps: How To Set Up QuickBooks Payments. It also provides steps on how to create an invoice that allows your customers to pay you online. 

I also recommend giving our Merchant Services Support a call for further guidance on how to set up the payments. They can answer your questions in mind about payments, please click on this link to get their most updated phone number:https://community.intuit.com/browse/payments-contact-us.

Also, I've got these articles for more ideas on how the payment feature works:

• Accepting credit card payments: The Basics
• Find out when QuickBooks Payments deposits your money
• Common Questions about QuickBooks Payments Deposits

Let me know if there's anything else you need or you have additional questions. I'm still here to help you more. Have a good one!