If a budtender has a customer's cart open on the payment screen and another budtender tries to access the same cart, a warning message will populate informing the budtender that payment is already in progress with another staff member.

Should a budtender want to take a cart that is in payment, they can enter their PIN to cancel that payment and take it over from the other staff member.

An alert message will appear if two budtenders have the same cart open and one initiates payment. Similarly, a notifier will display in the customer queue, showing when a payment is being processed and by which staff member.