2926545 - Error "Login Error. Failed to login to SAP Analytics Cloud" when trying to login to SAC.

The following error message occurs when IdP-Initiated SAML SSO to SAP Analytics Cloud:

"Login Error.  Failed to login to SAP Analytics Cloud"

SAP Analytics Cloud.

1. Enable IdP-Initiated SAML SSO in SAC as per the steps outlined  here:(https://help.sap.com/viewer/00f68c2e08b941f081002fd3691d86a7/release/en-US/9d270a55b57042b9827ae9f8685345e3.html).
2. Update the ACS endpoint with FQDN URL, for example, https://mysystem.ap1.sapbusinessobjects.cloud with index value
3. Browse to like https://testsystem.accounts999.ondemand.com/saml2/idp/sso?sp=mysystem.ap1.sapbusinessobjects.cloud&index=1 (index value is from step 2) if you are using SAP Cloud Platform Identity Authentication Service as your identity provider.
4. Provide logon credential like email address.

Wrong configuration on IdP side (Step 3 from the help guide:  https://help.sap.com/viewer/00f68c2e08b941f081002fd3691d86a7/release/en-US/9d270a55b57042b9827ae9f8685345e3.html)

ACS endpoint need to follow this pattern for IdP-Initiated SSO: https://<FQDN>/

For example, it should set to https://mysystem.ap1.sapbusinessobjects.cloud/ instead of https://mysystem.ap1.sapbusinessobjects.cloud. The slash sign at very end cannot be omitted.

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