08-07-2025 01:17 PM
Developing an eCommerce app that utilizes ShipStation API v2. Our app uses the API to get rates and print shipping labels for customer orders.
When requesting rates with delivery_confirmation parameters (direct_signature, signature, adult_signature, etc.), the returned rates do not include the associated fees. However, when creating labels with the same delivery confirmation settings, the final label cost correctly includes these fees. This creates a significant pricing gap between estimated rates and actual costs. This discrepancy occurs across multiple carriers (FedEx, UPS, USPS)
Is this a known limitation of the rates endpoint in API v2? Any guidance would be greatly appreciated.
08-13-2025 12:52 PM
Hello @polo!
First, welcome to the Community! We’re so glad you’re here. This is a great space to find answers, share feedback, and suggest new product features—we hope you find it helpful and inspiring!
Our support team recommends reaching out directly to shippingapisupport@shipstation.com—they’re our dedicated API experts and will be best equipped to assist you.
Happy Shipping!
-Cara