What is the maximum number of child cases that can be associated with a parent case using out of the box functionality?

The maximum number of child cases that can be associated with a parent case using the out-of-the-box functionality in Dynamics 365 is indeed 100. This limit is designed to help manage the relationships between cases effectively without overwhelming the system's performance and ensures that users have a manageable number of child cases to work with in relation to a parent case. When there are too many associations, it can complicate case management, making it difficult for customer service representatives to maintain clarity on case resolutions and relationships.

This functionality supports efficient case hierarchy structures, allowing organizations to organize related issues under a single parent case, which streamlines communication and resolution processes. Understanding this limitation is essential for effectively leveraging case management features in Dynamics 365 for Customer Service.