Click More in bottom right corner

Go to Parts Inventory tab

Select Part to add QR or Barcode

Click 3 dots (⋮) next to Restock in top right corner

Select Edit Part

Click Assign in QR/Barcode field

Select from the three options available: Input Code, Generate Code, or Scan Code
a. Input Code requires you to manually input QR or Barcode
b. Generate Code automatically generates QR or Barcode
c. Scan Code uses camera on device to scan QR or Barcode

Click Update in top right corner

Go to Parts Inventory tab

Select Part to add QR or Barcode

Click 3 dots (⋮) next to Restock in top right corner

Select Edit 

Click Assign in QR/Barcode field

Select from two options: Input Code or Generate Code
a. Input Code requires you to manually input QR or Barcode
b. Generate Code automatically generates QR or Barcode

Click Update in bottom right corner