Can I modify product json data for different fulfillment systems?

When I look at the product json data I notice that there is a fulfillment field under variants:

fulfillment_service

“manual”

Is there a way that I can change/set this data for use with out fulfillment systems on a per product basis? To something like 'Automatic/Digital…etc."

Hi @Kronos9326 ,

You can refer https://help.shopify.com/en/manual/shipping/fulfillment-services/custom

Hope it helps!