Remove Access token explicitly from OAuth2.0 code grant flow

Question

Hi there, 
 We are OAuth 2.0 code grant flow to connect to an system. We want a functionality where we can have a logout button which will remove the auth token for that particular user.

Srinivas Thota · Accepted Answer

hi, 
 to remove access token explicitly while using code grant, is through token expiration or revoke permission, revoke permissions is generally happens through third party system/end system. Please reffer the following link. 
 docs.appian.com/.../Oauth_connected_system.html