Common Mendix SSO Errors

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Below you will find solutions for some of the most common problems you may encounter when developing an AppCloud-enabled app.

1. 404 Not Found errors when navigating to /openid/login

A frequent cause of this issue is that the OpenID request handler is not enabled. It should be enabled on startup. To fix this, make sure that the AppCloudServices.StartAppCloudServices microflow is executed during the startup of your application. You can do this by setting it as the app’s after-startup microflow, or by having the application’s existing after-startup microflow trigger it.

2. Realm verification errors

These are commonly caused by compatibility issues with JAR files in the <projectpath>/userlib directory of your project. You can refer to this article for the most common compatibility issues.