--- schema_version: "1" id: 8586ddc432d6d0c2870923461f2c2203ea57424b3a8cb90d6ef2ec5897b26f0a title: LightningPrfmEventLog collection: legacydeveloper version: current locale: en-us portal_url: https://docs.salesforce.com/legacydeveloper/current/en-us/object_reference/sforce_api_objects_lightningprfmeventlog.md canonical_url: https://developer.salesforce.com/docs/atlas.en-us.object_reference.meta/object_reference/sforce_api_objects_lightningprfmeventlog.htm source_site: developer.salesforce.com content_type: documentation content_hash: 48e92d410f1c77c6d2db3046e11e0b93325a8ca9269d44394c9d704d377cd25d description: Lightning Performance events track trends in Lightning Experience and Salesforce mobile app performance. This object is available in API version 65.0 and later. --- # LightningPrfmEventLog Lightning Performance events track trends in Lightning Experience and Salesforce mobile app performance. This object is available in API version 65.0 and later. ## Supported Calls describeSObjects(), query() ## Special Access Rules To access this object, you must have the View Event Log Object Data user permission. ## Fields | Field | Details | | --- | --- | | AppName | Type string Properties Filter, Group, Nillable, Sort Description The name of the application that the user accessed. | | BrowserName | Type string Properties Filter, Group, Nillable, Sort Description The name of the browser that the user accessed. Example Chrome, Safari | | BrowserVersion | Type string Properties Filter, Group, Nillable, Sort Description The version of the browser that the user accessed in major.minor version format. Some browsers don’t provide a minor version. | | ClientGeolocation | Type string Properties Filter, Group, Nillable, Sort Description The geolocation of the client in the form of /. Example United States/California | | ClientIdentifier | Type string Properties Filter, Group, Nillable, Sort Description The API client ID. | | ClientIp | Type string Properties Filter, Group, Nillable, Sort Description The IP address of the client that’s using Salesforce services. A Salesforce internal IP (such as a login from AppExchange) is shown as “Salesforce.com IP”. For example: 96.43.144.26. | | ConnectionType | Type string Properties Filter, Group, Nillable, Sort Description The type of connection. Possible Values - CDMA1x - CDMA - EDGE - EVDO0 - EVDOA - EVDOB - GPRS - HRPD - HSDPA - HSUPA - LTE - WIFI | | DeviceIdentifier | Type string Properties Filter, Group, Nillable, Sort Description The unique identifier used to identify a device when tracking events. DEVICE\_ID is a generated value that’s created when the mobile app is initially run after installation. | | DeviceModel | Type string Properties Filter, Group, Nillable, Sort Description The name of the device model. Example iPad, iPhone | | DevicePlatform | Type string Properties Filter, Group, Nillable, Sort Description The type of application experience in name:experience:form format. Possible Values - name: APP\_BUILDER, CUSTOM, S1, SFX - experience: BROWSER, HYBRID - form: DESKTOP, PHONE, TABLET | | DeviceSessionIdentifier | Type string Properties Filter, Group, Nillable, Sort Description The unique identifier of the user’s session based on page load time. When the user reloads a page, a new session is started. Example 321a1ddfaf924803a075f1e69fc87bc06f53ccd0 | | Duration | Type double Properties Filter, Nillable, Sort Description The duration in milliseconds since the page start time. | | LoginKey | Type string Properties Filter, Group, Nillable, Sort Description The string that ties together all events in a user’s login session. It starts with a login event and ends with either a logout event or the user session expiring. Example GeJCsym5eyvtEK2I | | MobileSdkAppType | Type string Properties Filter, Group, Nillable, Sort Description The mobile SDK application type. Possible Values - HYBRID - HYBRIDLOCAL - HYBRIDREMOTE - NATIVE - REACTNATIVE | | MobileSdkVersion | Type string Properties Filter, Group, Nillable, Sort Description The mobile SDK application version number. | | OperatingSystemName | Type string Properties Filter, Group, Nillable, Sort Description The operating system name, derived from USER\_AGENT. | | OperatingSystemVersion | Type string Properties Filter, Group, Nillable, Sort Description The operating system version, derived from USER\_AGENT. | | PageStartTime | Type dateTime Properties Filter, Nillable, Sort Description The time when the page was initially loaded, measured in milliseconds. | | PageUrl | Type string Properties Filter, Group, Nillable, Sort Description Relative URL of the top-level Lightning Experience or Salesforce mobile app page that the user opened. The page can contain one or more Lightning components. | | PreviousPageUrl | Type string Properties Filter, Group, Nillable, Sort Description The relative URL of the previous Lightning Experience or Salesforce mobile app page that the user opened. | | RequestIdentifier | Type string Properties Filter, Group, Nillable, Sort Description The unique ID of a single transaction. A transaction can contain one or more events. Each event in a given transaction has the same REQUEST\_ID. | | SdkAppVersion | Type string Properties Filter, Group, Nillable, Sort Description Mobile SDK application version. | | SessionKey | Type string Properties Filter, Group, Nillable, Sort Description The hash of the session ID to allow tracking of all events in a session. | | Timestamp | Type dateTime Properties Filter, Nillable, Sort Description The access time of Salesforce services in GMT. | | UiEventIdentifier | Type string Properties Filter, Group, Nillable, Sort Description Id of the Lightning event type. | | UiEventSource | Type string Properties Filter, Group, Nillable, Sort Description The source of the performance event. | | UiEventTimestamp | Type dateTime Properties Filter, Nillable, Sort Description Timestamp of when event occurred. | | UiEventType | Type string Properties Filter, Group, Nillable, Sort Description The type of performance event. | | UserAgent | Type string Properties Filter, Group, Nillable, Sort Description The client user agent string. | | UserIdentifier | Type string Properties Filter, Group, Nillable, Sort Description The 15-character ID of the user who’s using Salesforce services through the UI or the API. For example: 00530000009M943 | | UserType | Type string Properties Filter, Group, Nillable, Sort Description The category of user license of the user accessing Salesforce services through the UI or API. |