In the example above, this is configured as:
Actions in Sequence
Generate label with Part & Serial Number in a barcode
This will ensure that each item in the order has a serial number created.
Select your preferred option for the serial number format.
For this to work correctly, the production station needs to know that it is the first operation in the sequence, and so should be the one to generate a serial number.
Once this is done, the Run Production Sequence window should show the quantity remaining in the order, and will generate a new serial number each time.