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Hello Shiva, Good day. Thanks for posting in the Microsoft Community.May I know if you want to access SharePoint admin center?If you are not an admin, you may need a global admin to assign you SharePoint admin role in admin center.Here is the article you can have a reference:Assign admin roles the Microsoft 365 admin center - Microsoft 365 admin | Microsoft Learn
If what I mentioned above is not what you need, please tell me more details about your request.
Best regards,
Trish - MSFT | Microsoft Community Support Specialist