As a user of an owner license in OfficeOn, you can link your OfficeOn account with Xero. Begin by opening OfficeOn and heading to the 'Settings' > 'Integrations'.

All you need to do it click Connect with Xero and you'll be redirected and prompted log into your Xero account.

You will then be asked to authorize the data transfer.

Once the connection is established, you can choose whether the invoices you create in OfficeOn should be automatically transferred to Xero, or if you would like to do this manually.