3 weeks ago
When an order requires (or is determined by error) to require additional funding to ship, the process for viewing the order is obfuscated. Here are the steps required–
ShipStation > Account Settings > Shipping > Carriers > Click the 3 dots beside USPS > View Reports > Click Balances > Switch to transaction view > Copy the tracking number > Go back to ShipStation > Orders > Shipped > Paste tracking number
ShipStation sends an email regarding the affected order. It should also include the tracking number associated with the adjustment.