The United States Postal Service (USPS) has implemented a new, more modern REST API for real-time shipping rates that also uses the OAuth 2.0 security model to enhance overall security.

If your BV Commerce store gets real-time shipping rates from USPS, you must install this update before January 26, 2026 or your store will no longer receive USPS real-time shipping rates.

Which versions of BV Commerce are affected?
BV Commerce 2020 and below are affected (i.e. all versions of BV Commerce as of this publishing on 1/19/2026). To determine which version of BV Commerce your store is running, log into the admin area of your store and go to Options >> About. The About page will list the "Application Version" at the top of the page.

Which versions of BV Commerce does this update support?
Only BV Commerce 2020 is supported by this update. If your store is running an older version, you must first upgrade to BV Commerce 2020 before applying this update.

How Do I Get It?
If you have a current BV.NEXT plan, you can download the update from the Downloads page of your account right now. If your BV.NEXT plan has expired, you can renew it from the Downloads page.

Installation
Before installing, follow our USPS OAuth API setup guide to get the necessary credentials from USPS. The final instructions in steps 3 and 4 can only be completed once you've finished installing this update.

Installation is simple. Download "BV Commerce 2020 USPS OAuth API update" from the Downloads page of your account and unzip the file and copy the contents of the \www folder to the root of your BV Commerce website, overwriting the existing files. It is recommended that you first make a backup copy of the files on your website that will be overwritten so you have the ability to roll back the update in the event of a problem.

How Can I Get More Help?
As always, customers with a current BV.NEXT plan can open a support ticket with a guaranteed response time of 24 hours during the work week (Mon-Fri). If you would like the update to be installed for you, please contact us or a BV Commerce Partner.