UPS, USPS, and FedEx Shipping API
Below are articles related to the USPS, UPS, and FedEx shipping API rate calculators that are built into PDshop!
Articles
Activating & Testing the USPS Rate Add-On
How to get UPS USPS and FedEx shipping rates on your website
How to obtain access to the FedEx Web Services, with PDshop
One of the key features of PDshop is its integrated shipping rates
Real-Time Shipping Rates Help (Troubleshooting & Enabling)
Shipping APIs like FedEx, UPS, and USPS are difficult to integrate... but there are solutions.
Some UPS or USPS Rates were not available
UPS Add-On Error 'XML document is not well formed'
UPS Add-On 'Validation Failure' Error & Version Information
UPS shipping rates and your online shopping cart
UPS, USPS, or FedEx Shipping rates seem incorrect.
USPS Add-On 'Unexpected System Error' while obtaining for rates.
USPS Error: RateV3 is not a valid API name for this protocol
USPS Error: You are not authorized to connect to this server.
USPS Rate V2 Disabled error message
USPS retiring older versions of their Rate API in May 2011
USPS shipping rates can be easily added to a website
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