Hi,
Going through this page - Authentication | Webex Contact Center for Developers (webex-cx.com), it mentions that the grant code is short-lived.
Your app should take the one-time short-lived code obtained in the previous step and exchange it for an access token. To get an access token, please make a request to https://webexapis.com/v1/access_token with the parameters as shown below:
Can someone please shed light on the exact expiry time for this grant code ?