AWS IAM Identity Center (SSO) - Assign Group to Organizational Unit

Hi all,

Working on an enterprise architecture/environment, having a huge number of AWS Accounts, We are facing some difficulties to assign Users/Groups to multiple-accounts.

So I'm asking if there is a way to assign Users/Groups to the whole Organizational Unit instead of selecting multiple-accounts each time we need to give access to a new employee/developer ?

Thanks alot

Peter