You can set up KLARA even without a verification code.
If you want to use the accounting for the same fiscal year in addition to your payroll, set up the accounting first.
You can start directly with the cash register. Set up and synchronize the accounting later.
If you use inventory with a floating purchase price, set up the accounting beforehand so that the inventory is directly synchronized with the accounting.
With Order management, Online shop and Project, you should first set up the accounting for the same fiscal year.