A cookie is a small file that is sent from the website by the browser and saved to the visitor’s device. A single web session may use several cookies.
Power Apps portals also use cookies to store information for various purposes. The following table describes the cookies used by Power Apps portals and their lifetime.
Cookies
| Cookie name |
Description |
Lifetime |
| __RequestVerificationToken |
Used by the anti-forgery system. |
Session |
| .AspNet.ApplicationCookie |
Used to identify user sessions. A user session starts when a user searches through the portal for the first time. It ends when the session is closed.Authentication site settings can be used to change the session expiration time. |
Session |
| adxPreviewUnpublishedEntities |
Saves the preview's ON/OFF mode used on the traditional CMS system for portal administrators. |
Session |
| adx-notification |
Used with basic form actions to save warning messages that must be displayed during forwarding. |
Session |
| ARRAffinity |
Automatically added by Azure sites, ensuring requests are balanced between different websites. Does not store any user data. |
Session |
| ASP.NET_SessionId |
Used to maintain the session of a logged-in user and prevent them from having to log back in. |
Session |
| ContextLanguageCode |
Saves the default language of the user accessing the portal within a session and across web pages. The cookie is deleted at the end of the session. |
Session |
| Dynamics365PortalAnalytics |
Critical service cookie for anonymous analysis of service usage which is aggregated for statistical purposes. |
90 days |
| iisDSTObserved |
Saves a value indicating whether daylight saving time currently applies. |
Session |
| isDSTSupport |
Indicates whether a specific date and time is in daylight saving time. |
Session |
| timeZoneCode |
Saves the "Time zone code" field's value from the CRM time zone definition table for the current time zone. |
Session |
| timezoneoffset |
Saves the time zone difference between UTC and local browser time. |
Session |
