Hi @ Phani Kumar Venigalla,
Thanks for reaching out!
To set up a security token to send messages to a Microsoft Teams channel using the Microsoft Graph API and a webhook, Obtain the access token and create a webhook for the channel.
Once you have obtained an access token and created a webhook for the channel, you can use the Microsoft Graph API to send messages to the channel by making a POST request to the webhook URL. The request should include a JSON payload with the message content and other information.
Note: Make sure to use secure methods for storing the access token and to follow security best practices when working with the Microsoft Graph API and webhooks.
Hope this helps.
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