All information about the existing SharePoint access tokens are saved on the SharePoint Access Tokens page. You can open it from any SharePoint Site Setup Card by clicking Access Tokens action.
In the list you can see all the site collections with an authorization setup. You can use this page to check the existing access setup or delete the tokens for some sites, if you want to do a new setup or just disable the access.
Access Token Type – specifies the authorization type.
Client ID – specifies the ID of the app registration on SharePoint or Microsoft Entra. All site collections with the same app id share the same token (e.g. you can use the same app registration for multiple or all SharePoint site collections).
Valid Until Date / Time – specifies the validity of current access token. If the token expires a new one must be requested or created.
