The POS function Open Cash Drawer can be used to open the cash drawer at any time. Please be aware that this function does not require any permissions or payments. It is recommended to only provide a button with this function if frequent access to the cash drawer is needed without keeping records of the cash drawer access. You can also use it to test if the cash drawer setup was successful.
If the cash drawer does not open, please make sure your printer is turned on, and verify your device setup under Settings > POS Profiles.