GA4 Dimensions & Metrics Explorer

First user default channel group firstUserDefaultChannelGroup

The channel that first acquired the user. User-scoped — pairs with user metrics.

Type
Dimension
Scope
User
Category
Traffic source
API name
firstUserDefaultChannelGroup

Compatibility

Likely compatible (scope-based estimate — run fetch_metadata.py for Google's exact matrix):

DatedateDay of weekdayOfWeekHourhourCountrycountryCitycityDevice categorydeviceCategoryOperating systemoperatingSystemBrowserbrowserLanguagelanguageSession default channel groupsessionDefaultChannelGroupSession sourcesessionSourceSession mediumsessionMediumSession source / mediumsessionSourceMediumSession campaignsessionCampaignNamePage pathpagePathPage path + query stringpagePathPlusQueryStringPage titlepageTitleLanding pagelandingPageHostnamehostNameEvent nameeventNameNew / returningnewVsReturningAudience nameaudienceNameActive usersactiveUsersNew usersnewUsersTotal userstotalUsersSessionssessionsEngaged sessionsengagedSessionsEngagement rateengagementRateAverage session durationaverageSessionDurationBounce ratebounceRateViewsscreenPageViewsViews per sessionscreenPageViewsPerSessionEvent counteventCountEvent count per usereventCountPerUserConversionsconversionsKey eventskeyEventsUser engagementuserEngagementDurationTotal revenuetotalRevenueTransactionstransactions

Watch out combining it with: Cohort, Cohort nth day — these can raise incompatible dimensions and metrics.