https://userapps.support.sap.com/sap/support/knowledge/en/2876491
2876491 - Check Connection of destination with authentication type OAuth2SAMLBearerAssertion fails...
When testing a destination with authentication type OAuth2SAMLBearerAssertion / OAuth2ClientCredentials / OAuth2UserTokenExchange in the SAP Cloud Platform...
check connectiondestinationauthenticationtypefails