QBPOS CANNOT FIND EXISTING CUSTOMER WHEN MAKING A SALES RECE

On the Server Workstation, you can run a function called Verify Data.

Go to Help>About Point-of-Sale and a Point-of-Sale information window appears. Press 4 keys (Left CTRL)+(Left ALT)+(D)+(B) and click OK. Return to the Help > Debug > click Verify Data.