To scan a barcode or QR code while creating or editing a Work Order or Service Appointment, in the Zoho FSM mobile app:  

1. Tap Scan QR/Barcode under the Service/Part line items lookup field.
   
   
   
   
2. You can also access the scanner from the search screen.
   
   
   
   
3. If prompted, enable camera access: tap Yes → Allow.
   
                       
   
   
4. Point your camera at the barcode/QR code.
   
   
   
   
5. Matching records will be shown. Tap on the select [  ] icon.
    
   
   
   
6. Select the Service/Part from the search results
   
   
   
   
7. The selected record will be filled in the Service/Part line items field.
   
   
   
   
8. If there’s no match, you'll see "No results found."
   
   

 The barcode/QR code must contain a value present in the SKU of the Service/Part.