Microsoft Dynamics 365
If enable for all entities, Playbooks would be a powerful tool for i.e. account planning and campaign related functions. Quite an usual request from customers and always been a custom solution.
Activities and Activity Feed
Enabling Playbooks for other OOB entities and custom entities is part of our roadmap.
Somehow the Playbook service should check whether the targeted entities are enabled for Activities, that’s all. Besides that just give us a plain Regarding lookup at the Playbook entity without the current restrictions.
My finding: Playing around with Playbooks for custom entities