You have a set of Azure policies. You need to group related policies together. What should you use?

Metadata provides additional information about a policy or initiative but does not group policies.

Azure Policy initiatives, formerly known as policy sets, are collections of Azure policy definitions designed to achieve a single overarching goal. Grouping related policies into an initiative allows for easier assignment and management, as a single initiative can be assigned rather than assigning each policy definition individually.

Exemptions are used to waive specific policies or initiatives for a certain scope, not to group policies.

Parameters are used to define values that can be passed into a policy definition or initiative, making them reusable, but they do not group policies.