Have Shopify's "Additional Details" and "Notes" sections import to different ShipStation fields! They are currently importing to 1 field in Shipstation, "Customer Order Notes".
Currently, if an order in Shopify has any information stored in the "Additional Details" column of an order, that information is imported into Shipstation in the "customer Order Notes" Field. This is the same field that the Shopify "Notes" section imports to. Shopify businesses commonly use the Shopify "Notes" section for gift messages. So, when all this info is imported, you get a gift message + any data from the "Additional Details" column funneling all together in the same Shipstation field.
This causes a huge headache for fulfillment and shipping teams that have to then manually separate a gift message from any other data that the import is capturing.
Check out my images to see a live example.