Find the class session you need to add the client to.

Click the three dot menu on the calendar card.

Click the "+" sign next to Attendees to add an attendee.

Notice "Alex Herzog" does not have any available credits for this class.

When you click their name and they don't have credits, a pop-up will appear. Click "Buy Credits"

Click the "x" to minimize the Session Summary Drawer.

Locate a credit pass that includes a credit for this class, here there is a pass called, "Fit Kids Single Credit".

After the purchase is complete, click "Close".

Go back to the Session Summary Drawer by clicking the three dot menu.

Click "Alex Herzog" to add him to the class session.

Add Drop-In Attendee to Class Session