Hi Team,
We use single sign on (siteminder) for authenticating to APPIAN. Once user is logged in ,he needs to invoke a service which again authenticates via same single sign on. Is there a way in connected system/integrations by which we can forward the credentials while invoking another service.
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When you set up SAML SSO, Appian delegates the authentication to the identity provider. Appian does not see the Siteminder credentials and the SAML assertion that comes back from the identity provider in this exchange does not contain credentials and is not accessible to the Appian designer. If another service accepts those same credentials in the request, you will have to find a secure way for the user to enter them.
However, integrations done on behalf of an end user are generally done using OAuth 2.0 Authorization Code grant type. This allows users to consent to Appian making requests on their behalf.
https://docs.appian.com/suite/help/19.1/Oauth_connected_system.html