SAML with Mautic

I set up a Mautic server on top of a UCS member. It works fine. But now I try to enable SAML and I fail, because I don’t know what to put where. Any advice?

Here the links I used
https://docs.mautic.org/en/authentication
https://www.content-optimizer.de/docs/mautic-handbuch/saml_single_sign_on/

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