Hi there,
A feature that would help our business out greatly would be having the ability to Allocate items within an order/shipment via the API.
For example there is the possibility to do it manually in the ShipStation dashboard, by opening an order > ShipMent Actions > Allocate. We would like to do this via the API. We believe this could be done via an additional flag on the existing API endpoint.
A member of support mentioned that a number of clients have asked for this feature too.
Regards