Hi there,
We are in the process of migrating from Parcelforce's old systems to their new system integrated with Royal Mail along with all of their customers.
We have activated the new Shipstation integration with Parcelforce, however we are getting the error "The selected service allows only single-piece shipments" on their most popular services Express48 and Express24.
On the old integration multi-parcel shipments worked fine with Express48 and Express24.
Is this really the case, and if so why? This change makes Shipstation nearly as good as useless to us as most of our ParcelForce shipments are multi-parcel.
