Hello @priya ,
Welcome to the Microsoft Q&A platform.
Make sure to associate your Azure DevOps organization to Azure Active directory.
Navigate to Organization settings => In General section => Select Azure active directory. which allows you to associate organization.
For more info about connecting Azure Repos to your organization's Active Directory, see Connect your Azure DevOps organization to Azure Active Directory.
Hope this helps. Do let us know if you any further queries.
------------
Please don’t forget to Accept Answer
and Up-Vote
wherever the information provided helps you, this can be beneficial to other community members.