This article is for inserting the Serial No. Barcode (Code 39) in your POD pdf.
Steps
Navigate to Settings > Job > Fields.
Enable Serial No. > Save.
Navigate to Settings > PDF.
Check Print serial no. barcode (Code 39) > Save.
Driver App
Tap on the Camera icon.
Tap Capture QR / Barcode.
Scan the barcode or QR code with the camera.
Complete the job.