Hello @Hiren Kamani
Thank you for reaching out. I would like to confirm that “Access to Azure Active Directory” subscriptions are a legacy subscription type that are no longer used. These types of subscriptions were used prior to the Azure Resource Manager Portal (https://portal.azure.com) was access and managed from classic/legacy Azure portal (https://manage.windowsazure.com).
Catch here was Legacy Azure Portal only granted users access to manage Azure Active Directory only if the user had an Azure subscription associated to their user account. It utilized the classic Azure roles such as "Account Admin", "Service Admin" and "Co-Administrator" and you needed any one of these roles assigned your account via subscription to get access to Azure AD.
Basically, these were dummy subscription created to allow end users to get access to Azure Active Directory resource. Currently we do not have such offer types and you can work with Azure Subscription team to have the offer changed and moved to modern billing platform if you would like to deploy any resources under it.
You can read this blog post for a bit more history if you are interested: Azure AD Mailbag: Azure Subscriptions and Azure AD.
To change the subscription, offer type and assign access to this subscription you can raise a billing request from Azure Portal using steps mentioned in following article: Create an Azure support request.
I hope this helps.
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