A simple solution would be a buzzer system that calls an employee to your aisle. But if an employee has the option of meeting shelf stocking or some other target, or spending time helping a customer, which isn’t as easily tracked and doesn’t look as good on a chart when bosses look at it, which do you think that they’ll choose?

My local petrol station has the same person stocking shelves as serving customers a lot of the time, it creates a right nightmare situation.