Currently, there is no way we can capture cancel meet event in outlook add-in Office js API or Custom event type. Please help add this feature in the outlook add-in which will help handle the cancel meet scenario.
Let's say I have scheduled a meet through third-party API for the outlook meet items so when the user opens and cancels the meet in the outlook I want to cancel the meet to the third party, Since there is no way to handle this we will not be able to cancel the meet in the third party app.
