USPS changes effective September 28th, 2014

Applies to: AbleCommerce 7.0.3 - 7.0.7

Release Date:  8/25/2014

Amended on:  9/24/2014

Severity: High




USPS Web Tools will be retiring their RateV3 API on September 28, 2014. We have provided a patch so you can upgrade to RateV4 and avoid any disruption in service.

Reference for more information.


Changes between August 25th, 2014 and Sept. 24th, 2014 include:

  • Upgrade International API to RateV2.

  • Change country name from "Great Britain" to "United Kingdom" (within USPS code)

  • Change maximum weight from 150 lbs to 70 lbs.

  • Dimensions will be rounded up to the nearest whole number.

  • Tracking URL updated to{0}

  • Service names changed -

*USPS First-Class Mail Stamped Letter
*USPS First-Class Mail Metered Letter

*USPS Media Mail Parcel
*USPS Library Mail Parcel


The USPS integration requires a new DLL and new CSV file for service name updates.

For AbleCommerce 7

1. Download: AC7

2. Extract file and place in \BIN\ folder.

3. Place the CSV file in the \App_Data\ folder*.

4. Restart IIS or recycle the application pool.




version 7.3.14358.0


dated 9/24/2014

* The new CSV file contains updates to add First-Class Mail Letters and name changes for Media Mail and Library Mail.  If you are not using these services (or plan to use them), then it is not necessary to update your CSV file or complete steps 4 - 7 below.



If you have an existing integration, then you will need to follow these additional steps:

1.  From the USPS configuration page, change the Maximum Package Weight to 70 pounds.

2.  Change the TEST MODE URL to:

3.  Change the TRACKING URL to:{0}

4.  Go to the USPS shipping methods page.

5.  If you are using Media Mail or Library Mail services, then remove them.

6.  From the list, select the updated Media Mail and Library Mail services and add them.

7.  If desired, select the First-Class Mail (Stamped/Metered) Letter services.

8.  Click SAVE when finished.



For questions or problems, please report to the community forums here:


NOTE:  An update from AbleCommerce 7.0.2 and earlier versions will not be provided.  If you need the updated USPS patch, then you should upgrade as soon as possible.


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