Problem
In Settings, enter and validate an address for the business unit. You should then be able to create POS invoices for the business unit.
Solution
Follow these steps to add an address to a business unit and enable POS invoice creation:
Go to the navigation bar and click Settings.
In the side panel, go to Operations > Business Units.
Select Edit for the business unit that does not have a validated address.
Click the Address tab.
Enter the address for the business unit.
After you finish typing the address, click the Question Mark icon to validate it. If no suggestions appear, make sure the address is entered correctly before saving it.
Click Save.
After validating and saving the address, you should be able to create POS invoices for this business unit.