Questions about different branchs

Hello;

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 ?

Thanks
Regards