The Target Expression builder provides an estimate of the number of subscribers your selection will target. This feature is available across all sections within the platform that use target expressions, including activities, integrations, audiences, segments, extracts, and assets.

Real-time estimations

As you begin to build your expression, the system will start estimating the number of subscribers in real time. The calculation duration depends on the complexity of the expression—it can take anywhere from a few seconds to a couple of minutes (e.g., when querying more than six years of transaction history).

Once calculated, an approximate count is displayed. An error range is shown in brackets beside this number, indicating that the final targeted number will fall within this range. This estimate should not be considered as the final targeted number.

Channel-specific estimates

In email and SMS activity targeting, estimates will account for the contactable portion of the database relevant to the selected channel. As a result, the estimate may differ from the same target expression when viewed in other contexts, such as the extract dialog.

Estimated vs Targeted counts

After saving the target expression, the estimated count will be shown within the activity card and list views on the dashboard or within a campaign folder.

Once an Activity Check has been performed, the displayed count will update from Estimated to Targeted. This reflects a more accurate number of recipients that will actually be targeted.

This serves as a helpful visual indicator for users, showing which activities have had an Activity Check completed.

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