Jan 19 2020 11:21 PM
Jan 20 2020 12:09 AM
Jan 20 2020 05:54 AMSolution
Hi @Ares Chen
You can see a user removing themselves from the Audit log in the Office 365 Security and Compliance Centre. Took a few hours to see this come through.
As you can see from the screenshot this is user Lidia Holloway removing herself from the Team. Lidia was not an admin of that team only a member.
This was simply searching for removed members under Microsoft Teams. You can filter on the team by using filters
Activity: Remove Members
Item: [Team Name]
Hope that answers your question!