## Find All External Members in Teams Channels

Execute this PowerShell script to list all Teams Channels with external members, ensuring secure external collaboration in Microsoft Teams.

***Sample Output***

The script exports two CSV files: a detailed report showing external users in channels and a summary report with guest user counts across all channels. The sample output is shown in the screenshot below.

**Detailed report: Teams Channels and their external user details**

![Team Channels with external users report](<https://o365reports.com/wp-content/uploads/2025/02/teams-channel-with-external-user-800x281.png?v=1738651944>)

**Summary report: Teams Channels and their guest users count**

![Team Channels with external members report](<https://o365reports.com/wp-content/uploads/2025/02/teams-channel-with-guest-users.png?v=1738651946>)

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