[Resolved]  Cognizant — I'm unable to login in one cognizant portal it show error

I got mail from cognizant regrading to complete per joining formalities. But I am unable to login into 1C portal. please resolve problem as soon as possible thank you.
Request Id: 9ca0072e-ab53-4b14-8ad6-807137c91700
Correlation Id: 0ff4ee66-9ee8-493f-b64f-4c22987ea5fa
Timestamp:[protected]T07:05:48Z
Message: AADSTS50105: The signed in user 'tammallarahul_gmail.com#EXT#@CognizantOnline.onmicrosoft.com' is not assigned to a role for the application 'bb557c9c-73c3-4026-9da2-0b57ec4204b4'(ENT_onecognizantexternal_SAML_PROD).