Magento Integration. 500 Internal Server Error

We're starting to use Linnworks and adding our channels.

I have set up the SOAP user and roles and enabled WS-I Compliance and when I click the test button for the Magneto Integration I get a successful test.

When I click the Text Extension I get the message ...

"Cannot load from URL: Error message: The remote server returned an error: (500) Internal Server Error"

Linnworks help just says this is nothing to do with them.

There are probably only a handful of reasons why this error displays when testing this.

Any one else had this and what was the cause?

We're still on Magento at the moment.

Hello there,

Please first ensure that following Magento patches are installed:




Patches can be downloaded from

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