The rollout‑timelines below shows how Protection Sets are introduced to your Microsoft 365 environment in waves.

 

Each wave appears in sub phases as a horizontal bar: dark blue marks the planned (base) work, and light blue indicates a possible extension.

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With the entire plan visible below, it is a matter of following the logical flow.

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Rollout Stages

These are contained in four waves, each wave has a chronologically order as everything works together.