Questions about different branchs


We created ‘Stars’ system in sambapos customers earns stars as you shop from our business and update customer entities data then spend stars whenever they want (system running like this 1 product = 1 stars when orders add customer stars increase +1). But our business had 2 branch.We stored customer data sambapos sql database 2 branchs customer stars data kept separately, customers wants to spend other branch. Is it possible to keep the customer stars data together? Is there any solution ?