How to check/add Owner role for Azure resources?

You can add Owner role a subscription from its main blade in the Azure portal.

1. Select Subscriptions in the navigation bar on the left.

2. Select the name of the Subscription.
3. Select Access control (IAM)from the left menu.
4. Select Add on the Access control blade.

5. Select the Owner role that you wish to assign from the Select a role blade.
6. Select the user that you wish to grant access to. You can search the directory with display names, email addresses, and object identifiers.

7. Click Save button.

Note: Classic subscription admins and co-admins are considered owners of the subscription in the new RBAC model.

After successfully adding a role assignment, it will appear on the Users blade.