To limit only specific apps on the app bar for a department in Teams, which action is essential first?

Creating a custom app setup policy is the essential first action when aiming to limit specific apps on the app bar for a department in Teams. A custom app setup policy allows administrators to define which apps are pinned on the Teams app bar for users, tailored to the needs of that specific department. By creating this policy, you can ensure that only the most relevant applications are accessible, enhancing user experience and ensuring that department members focus on their primary tools without unnecessary distractions.

Establishing a custom app setup policy is particularly important because it provides the framework to manage how and when applications are visible to users. Once this policy is created, it serves as the basis upon which other configurations, like app permission policies, can be aligned to ensure compliance and security.

In this context, creating an app permission policy would typically follow as a secondary step, ensuring that not only are the right apps accessible, but they also adhere to security and compliance standards. However, the customization of the app bar itself must happen first through the app setup policy.