[GA4] BigQuery Export user-data schema

Setup

When you set up BigQuery Export, you have the option to include a daily export of user data.

Data tables

When you export user data, Analytics creates two new tables in your BigQuery project:

  • Pseudo ID
    • Contains a row for every pseudonymous identifier. Data for a user is updated when there is a change to one of the fields.
    • Data for unconsented users is not exported to this table.
    • User IDs are not exported to this table.
    • Last active timestamp is exported to this table.
  • User ID
    • Contains a row for every user ID. Data for a user is updated when there is a change to one of the fields.
    • Data for unconsented users can be exported to this table if it includes a user ID.
    • Pseudo IDs are not exported to this table
    • Last active timestamp is exported to this table.

Active users vs. all users in user-data export

This export includes any user whose data has changed that day. For example, if a user initiates a session and thus increments the lifetime value of user_ltv.sessions, then that user is included in the export. If a user is dropped from an audience because on this day they no longer match the include condition for the audience (e.g., they haven't made a purchase for the last 7 days), then that user's data has changed and they are included in the export.

Because users are included based on changes in data and not only on activity, the number of users in the export may exceed the value of the Active users metric for a given day or date range. (The Active users metric appears as Users in Reports.)

If you want to query your exported data to get just the number of active users, you can use some of the example queries outlined in our developer documentation.

Schema

The following sections describe the user data that Analytics exports to the Pseudo ID and User ID tables (subject to the differences enumerated in the section above).

Audit

Field name Data type Description
occurrence_date STRING Date when the record change was triggered
last_updated_date STRING Date when the record was updated in the table

User

Field name Data type Description
user_id STRING ID for the User-ID namespace in reporting identity (User ID table only)
pseudo_user_id STRING ID for the Pseudonymous namespace (Pseudo ID table only)
stream_id INTEGER Data-stream ID (Pseudo ID table only)

 

User info

Field name Data type Description
user_info.last_active_timestamp_micros INTEGER Date of the user's last activity (timestamp in microseconds)
user_info.user_first_touch_timestamp_micros INTEGER Date of the user's first_open or first_visit event, whichever is earlier (timestamp in microseconds)
user_info.first_purchase_date STRING Date of the user's first purchase (YYYYMMDD)

 

Privacy info

Field name Data type Description
privacy_info RECORD Privacy information
privacy_info.is_ads_personalization_allowed STRING

If a user is eligible for ads personalization, isAdsPersonalizationAllowed returns 'true'. If a user is not eligible for ads personalization, isAdsPersonalizationAllowed returns 'false'.

isAdsPersonalizationAllowed returns '(not set)' if Google Analytics is not currently able to return whether this user is eligible for ads personalization; users where isAdsPersonalizationAllowed returns '(not set)' may or may not be eligible for personalized ads. For personalized ads, you should treat users where isAdsPersonalizationAllowed = '(not set)' as isAdsPersonalizationAllowed = 'false' because, in the most general case, some of the '(not set)' rows will include users that are not eligible for ads personalization.

Users where isAdsPersonalizationAllowed = 'false' can still be used for non-advertising use cases like A/B testing & data explorations.

privacy_info.is_limited_ad_tracking STRING The device's Limit Ad Tracking setting. Possible values include: 'true', 'false', and '(not set)'. isLimitedAdTracking returns '(not set)' if Google Analytics is not currently able to return this device's Limit Ad Tracking setting.

 

Audiences

Field name Data type Description
audiences RECORD Audience information
audiences.id INTEGER ID of the audience
audiences.name STRING Name of the audience
audiences.membership_start_timestamp_micros INTEGER When the user was first included in the audience (timestamp in microseconds)
audiences.membership_expiry_timestamp_micros INTEGER

When the user's audience membership will expire (timestamp in microseconds)

Membership duration is reset when new activity requalifies the user for the audience

audience.npa BOOLEAN true or false based on your NPA settings for events and user-scoped custom dimensions included in your audience definition

 

Properties

Field name Data type Description
user_properties RECORD User-property information
user_properties.key STRING User-property dimension name
user_properties.value.string_value STRING User-property dimension value
user_properties.value.set_timestamp_micros INTEGER When the dimension value was last set (timestamp in microseconds)
     

 

Device

Field name Data type Description
device RECORD Device information
device.operating_system STRING Device operating system
device.category STRING Category of the device (mobile, tablet, desktop)
device.mobile_brand_name STRING Device brand name
device.mobile_model_name STRING Device model name
device.unified_screen_name STRING Screen name

 

Geo

Field name Data type Description
geo RECORD Geographic information
geo.city STRING City from which events were reported
geo.country STRING Country from which events were reported
geo.continent STRING Continent from which events were reported
geo.region STRING Region from which events were reported

 

Lifetime

Field name Data type Description
user_ltv RECORD Lifetime information
user_ltv.revenue_in_usd DOUBLE Lifetime total revenue (in USD)
user_ltv.sessions INTEGER Lifetime total number of sessions
user_ltv.engagement_time_millis INTEGER Lifetime total engagement time (in milliseconds)
user_ltv.purchases INTEGER Lifetime total number of purchases
user_ltv.engaged_sessions INTEGER Lifetime total number of engaged sessions
user_ltv.session_duration_micros INTEGER Lifetime total session duration (in milliseconds)

 

Predictions

Field name Data type Description
predictions RECORD Prediction information
predictions.in_app_purchase_score_7d DOUBLE Probability that a user who was active in the last 28 days will log an in_app_purchase event within the next 7 days
predictions.purchase_score_7d DOUBLE Probability that a user who was active in the last 28 days will log a purchase event within the next 7 days
predictions.churn_score_7d DOUBLE Probability that a user who was active on your app or site within the last 7 days will not be active within the next 7 days
predictions.revenue_28d_in_usd FLOAT Revenue expected (in USD) from all purchase events within the next 28 days from a user who was active in the last 28 days
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