Step 1: Wait for Stripe to approve you
In the admin menu: Setup & help, then Guided Setup
The "Buy a class as a student" step on Guided Setup opens once Stripe approves your account, because a card cannot be taken before that.
If a real student has already paid you, the step is done already and there is nothing to test.
Read Get paid onlineStep 2: Start the test
In the admin menu: Setup & help, then Guided Setup
The step names what you will buy (your cheapest class, pack or membership) and about how much Stripe keeps as its card fee. That fee is the whole cost: the price comes back to your card automatically.
Click "Start the test". A membership test asks you, at checkout, to accept that it renews; accept it. It is cancelled straight away and never renews.
Step 3: Buy it as a student
In the admin menu: Setup & help, then Guided Setup
Click "Copy link" and open a private window in your browser. Paste the link there, sign up as a new student with an email that is not your studio login, and buy the one item it shows you with your card.
The link works once, for 2 hours. If you lose it, start a new test; the old link stops working.
Step 4: See it land
In the admin menu: Setup & help, then Guided Setup
Come back to Guided Setup. It says "Your booking landed." while the refund is on its way, and ticks the step when Stripe confirms the refund, usually within minutes. "Check again" looks now.
"See it in Sales" opens the order, marked as a test. It is left out of your sales numbers. Your bank can take 5 to 10 days to show the refund.
If the refund cannot go through automatically, the step says so and StudioMomo refunds it by hand; you can also refund it yourself from Sales.