Our client is using the ShipStation integration with Acumatica. However, we’re noticing that when the shipment is completed in ShipStation and it writes back the shipment info, it is updating the shipment to the wrong Ship Via.
Example:
In ShipStation, the ‘USPS Parcel Select Ground’ option has been selected:

And in Acumatica under the SHIPSTATION INFO tab of the shipment, this method is correctly recorded:

However, on the SHIPPING tab the Ship Via has been incorrectly changed to ‘UPS GROUND’:

This is causing issues downstream as Shopify thinks the shipment is via UPS but the tracking number is for USPS.
Anyone know what might be going on here and how to fix?
