What is equivalent of azure classic RBAC co-administrator role ?

There is none - rather than having a single Administrator and multiple co-Administrators, you can designate multiple owners.

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hth

Marcin

@Srinivas Yerubandi

Thank you for posting this in Microsoft Q&A.

In ARM (Azure resource manage) we only have owner role and contributor role on subscription level. These roles are highest privileged role in RBAC on the subscription level.

Owner role is the one which is equivalent to service administrator and co-administrator role in classic subscription administrator role.

The rest of the built-in roles allow management of specific Azure resources. For example, the Virtual Machine Contributor role allows the user to create and manage virtual machines. For a list of all the built-in roles, see Azure built-in roles.

You refer below article,

https://zcusa.951200.xyz/en-us/azure/role-based-access-control/rbac-and-directory-admin-roles#azure-roles

For service administrator, you can have the same user account have owner role assigned on the subscription.

You can get RBAC owner role assign to the same service administrator account on the subscription level.

This will keep your account same access as the service administrator.

Let me know if you have any further questions.

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