How Custom Shipping Rules handles data when installed on your BigCommerce store. Last updated 11 June 2026.
Custom Shipping Rules (“the App”) is a BigCommerce app provided by Codinative (“we”, “us”). The App calculates UPS weight-based domestic shipping rates for a store's checkout. This policy explains what data the App accesses, stores, and processes.
When a merchant installs the App via BigCommerce OAuth, we request only two permissions — both needed to calculate and display shipping rates:
The App does not access orders, customers, products, or payment data.
We store the minimum required to operate the App, in Google Firebase (Firestore):
At checkout, BigCommerce sends the App a quote request containing the cart's line items (weights and dimensions), the destination country, and the currency, so we can return rates. We log non-identifying request metadata (weights, currency, timestamps, user-agent) for diagnostics only. We do not store shopper names, addresses, emails, or payment information.
We do not sell or share your data with advertisers, and we do not use it for any purpose other than operating the App.
When you uninstall the App, BigCommerce notifies our uninstall endpoint and we remove your store record, access token, and associated user records. To request deletion at any other time, email us at info@codinative.com.
All traffic uses HTTPS. Access tokens and credentials are stored server-side and are never exposed to the browser or to shoppers.
Questions about this policy? Email info@codinative.com or visit codinative.com.