Neither FedEx nor USPS shipping methods seem to be functioning in 1.9CE. Does anyone else have experience resolving this issue? I have upgraded two sites from 1.4CE (which were using FedEx and USPS) and now I can only offer flat rate. What next?

  • Have you re-entered your FEDEX and USPS credentials? During the upgrade, they may have been changed accidentally (due to encryption keys). This has happened to me before. What do your var/logs say about it? Turn on debug mode on Fedex.
    – kab8609
    Dec 8, 2014 at 17:55

1 Answer 1


If you know in July 28, 2013 USPS make some changes to own API and you should install patches to USPS module of Magento: http://www.magentocommerce.com/blog/magento-community-edition-alert-important-patch-for-usps-api/ And also FEDEX api also was changed in May, 2012. Use updated extension: http://www.webshopapps.com/fedex-shipping.html

If you have already updated your modules, see var/logs/ to find some issues.

  • Do I need to install patches if my site was installed in 2014? I checked the USPS log and it says: <Error><Number>80040B1A</Number><Description>Authorization failure. Perhaps username and/or password is incorrect.</Description><Source>USPSCOM::DoAuth</Source></Error>
    – yldziner
    Jan 5, 2015 at 17:59
  • The USPS login is correct though...
    – yldziner
    Jan 5, 2015 at 18:00
  • FedEx log says: [result] => stdClass Object ( [HighestSeverity] => ERROR [Notifications] => stdClass Object ( [Severity] => ERROR [Source] => prof [Code] => 1000 [Message] => Authentication Failed )
    – yldziner
    Jan 5, 2015 at 18:01
  • But the FedEx credentials are also correct...
    – yldziner
    Jan 5, 2015 at 18:02
  • please your site link or check my profile to send thanks Jan 6, 2015 at 18:18

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