From the MaintainX web interface click the Assets section, and find the asset you want to create a label for, or create a New Asset.
Scroll down to the QR Code/Barcode section in the asset edit form, and click Generate Code.
Scroll to the bottom of the asset edit form and click Create (for a new asset) or Update (for existing assets).
Click the Edit button for the asset to re-open it.
Select the URL text in the QR Code/Barcode field, and paste this into the URL field of the label generator.