There's no support for Address book policies via Graph APIs, nor they are supported in Exchange Online for that matter.
Microsoft Graph API address book policy

Amine BOUHADJAR
1
Reputation point
I have a code that creates an office365 account using Microsoft Graph API. Everything works fine but now i have to add an address book policy to the account after creating it.
I can't find anything on how to achieve this, is it possible to do such thing with the API ?
I also found this : https://learn.microsoft.com/en-us/exchange/address-books/address-book-policies/create-an-address-book-policy
Can i use this with php exec() function ?