Cognizant Technology Solutions — Unable to login into 1C portal

I've received my DOJ, but I'm not able to login to the OneC portal and due to this I'm unable to accept the joining and complete other formalities. Kindly resolve the issue as this is the 3rd time I'm receiving joining and the previous 2 times also I could not get onboarded because of the same issue.
Below are the details displayed when I try to login into the oneC portal

Troubleshooting details

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Request Id: eedcfd65-d[protected]d57-851f97c81300

Correlation Id: b3330b56-220d-45fb-92ce-58318fd5202f

Timestamp: [protected]T09:17:59Z

Message: AADSTS90072: User account [email id]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