This will walk through how to create a shipping order from a sales order in ecomdash that is downloaded from your marketplace:
1. Navigate to Sales orders -> Paid ready to ship
2. Check the box for your sales order on the left hand side. Click the action dropdown and choose 'Create Shipping Orders'
3. This will move your sales order to the Shipping Orders -> Unshipped orders section where you can work the order to be shipped.