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The Remote Server Has Returned Error 400

This article explains Webgility Online users about the “Remote Server Has Returned Error 400” issue that may occur when connecting a sales channel to the Webgility Online. The error typically indicates that the request sent to the remote server was invalid or malformed, often due to incorrect credentials, an invalid URL, or a rejected connection caused by server security settings or maintenance activities. It provides troubleshooting steps such as whitelisting specific IP addresses on the Magento server, verifying the sales channel connection within Webgility, and consulting the referenced help article for further developer-level resolution.

Possible reasons for the error:

The error "Remote server has returned error 400" usually means that the request sent to the remote server was invalid or malformed. When connecting a sales channel to the Webgility Application, this error could be due to incorrect credentials, an invalid URL, or an incorrect request. It might also occur if the remote server rejects the connection for security or maintenance reasons.

Steps to troubleshoot the error:

1). Whitelist the following IP addresses on your Magento server and then check the sales channel connection.

IP Addresses:

  • 54.69.99.71

  • 183.182.84.170

  • 111.118.255.21

2). To check the sales channel connection, Go to Integration> Stores> Manage> Edit Connection.

3). Share the below help article with your Web Developer to get it fixed.