If you are unable to verify a payroll subscription in QuickBooks, you might see QuickBooks error 30159 on the screen. This error code occurs when QuickBooks cannot verify the user's login or when updating the payroll function, and it can be caused by some common reasons, such as a damaged paysub.ini file. If you are getting QuickBooks error code 30159, you can use the steps below to fix this problem permanently. Issues with the payroll subs...