Multiple copies of Express Invoice can use the same data by turning on the Sync with other devices option. A Dropbox account is required to set this up.

Sync this device with other devices running Express Invoice Invoicing Software

Check this box to turn on syncing with other devices.

Storage Location

Dropbox: Check this option to use Dropbox as the cloud storage location.

Connect: Use this to initialize your sync setup.

Disconnect: Use this to end your sync connection.

Device prefix: This will be prepended to Invoices, Quotes, Orders, and Receipts. It will be automatically set up for devices after the first device has been synced.