Change Fulfillment Order delivery_method

[parzivalG1]

I don't see anywhere in the docs, but is there an API available to change the delivery_method of a Fulfillment Order. The following API create a Fulfillment for one or more Fulfillment Order but given that each Fulfillment Order differ in Delivery Method, it fails.

[RobZone]

What do you want to change?  There is no API to change the delivery_method right now.  But I would like to understand your use-case.