Subject: Cancelled — [Meeting name] — [Day Date]

Hello all,

[Executive name]'s [Meeting name] scheduled for [day, time] has been cancelled.

The reason: [one sentence — diary clash / matter resolved out of meeting / decided async].

What happens instead:
- [Decision or update will come via email by date / next meeting absorbs the agenda / no replacement needed]

If your item on the agenda still needs attention before then, please send a short note to [Name] and we'll handle it directly.

Apologies for the late change.

[Your name]
EA to [Executive name]