I understand that you need to get the fields quantity received and quantity fulfilled but they are not available in the saved search and you cannot use them in the transfer orders script.

Here are a few possible solutions:

1. You could try to create a custom field that combines the two fields quantity received and quantity fulfilled. This would allow you to see both fields in the saved search and use them in the transfer orders script.
2. You could try to use the field explorer to create a custom report that includes the fields quantity received and quantity fulfilled. This would allow you to see both fields in a single report, but you would not be able to use them in the transfer orders script.
3. You could try to use the field explorer to export the fields quantity received and quantity fulfilled to a spreadsheet. This would allow you to work with the data in a more flexible way, but it would require manual intervention to update the transfer orders script.

Which solution is best for you will depend on your specific needs and requirements.