Cognizant — Not able to login 1C portal

Address: Banglore

Request Id: e5a9d7ef-8767-4ccf-8af0-649d16116d01
Correlation Id: a7865af9-2c74-487c-896e-5d902e1336aa
Timestamp:[protected]T15:34:18Z
Message: AADSTS90072: User account '[protected]@gmail.com' from identity provider 'live.com' does not exist in tenant 'Cognizant' and cannot access the application 'https://onecognizantexternal.cognizant.com'(ENT_onecognizantexternal_SAML_PROD) in that tenant. The account needs to be added as an external user in the tenant first. Sign out and sign in again with a different Azure Active Directory user account