Synchronization Editor and SCIM

Hey.

I want to provision users in a cloud system that has SCIM 2.0 available. But when I'm trying to create a system connection the test fails everytime with the following (albeit short) error message:

2020-06-23 11:44:51.5525 ERROR (SystemConnector SCIM-45DFD8) : Error calling a provider method.

1. Is there a way to get a better more detailed error message?
2. Do I have to install CSM and/or UCI? I'm not using Sterling Connect.

Thanks

I'm using Identity manager 8.1.2

/H