SCENARIO:
Web TimeSheet is setup with SAML authentication. I am trying to integrate Web TimeSheet with Web Resource however I am being prompted for a user name and password.

RESOLUTION:
Web Resource will not be able to access the SAML URL and redirect. If the integration needs to be successful, then it is imperative that Web TimeSheet has a user account with administrative privileges and is setup with Web TimeSheet Internal Authentication (That is a specific user name and password).

When enabling the integration, provide the direct URL of Web TimeSheet (not the SAML URL) and provide the aforementioned created user credentials.