Even if invitbox does not currently support your POS System, it is still possible to export your POS data from invitbox using the Default Inventory option.
From the Admin tab, simply select Default from the list of Software options available under Inventory / POS Settings.
When you select this option, you are telling invitbox that you want to export your POS data in a pre-defined CSV format. The format of the CSV file can be seen by clicking edit next to the Export Mappings option and can be modified too to suit your specific needs.
Please click here for more details.