In order to combat potential fraudulent charges, customer accounts have a limit of 20 transactions per day. This is not a limit for your studio but a limit on customer accounts. This means that any specific customer account can only make 20 transactions within a day. When the limit it hit, the customer will receive an error on the next purchase attempt.

The limit is required and defaulted to 20 transactions. If your studio needs to adjust the limit, reach out to support.