When you are making use of the Scan&GO you can create your own barcodes or 'scancards'.
You can follow this link , make sure you are logged in to your SendCloud account to get access to this page.
When not logged in, you will see the log-in page to SendCloud. it is possible to log-in with your credentials from your SendCloud account from here.
By choosing a shipping method and click on the button 'generate' you will make the barcode for your Scan&GO module. This way you can scan and print your labels very quick with the right shipping method.