You can opt to have Kennel Connection set the maximum number of grooming services (Bath, Grooms, Nails, Others) by appointments or by groomer.
Once you reach the max number, you will get a popup screen warning that you are overbooking.
Click on File, System Options, Grooming tab.
If you choose the option by appointments, enter your maximum number of services in the boxes.
If you choose by groomer, the next step is to click on File, Employees, Payroll tab.
You will need to set a maximum number of services for each employee.