I do order splitting in ShipStation. Frequently, an item on the split
portion is not available and I have to cancel a line item in Shopify.
Because we already shipped part of the order, ShipStation does not
update the order on the unshipped portion. ...
How can I find out if the use fulfillable quantity is turned on for my
ShipStation? I have refunded cancelled items on Shopify orders and the
changes are not reflected in orders that I have on hold in ShipStation.