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Campaign Audience BuilderCampaign Audience BuilderCAB Documentation

See audience size and membership change over time

Understand movement

Run history now answers two different questions: “How large was this audience?” and “Who actually changed?” Size trends appear at a glance, while each eligible run records joiners and leavers against its previous baseline.

Post-run insight · Admin opt-in for member changes

Audience Details showing the audience size trend and joined-versus-left member counts across a month of runs

Use the trend and change views

Section titled “Use the trend and change views”
  1. Open an audience and its Run History.
  2. Use Size Trend to see result counts across runs. The audience list also shows the latest trend direction.
  3. Open a run to review its joiner/leaver flow. Choose Joined Members or Left Members when member-level inspection is available.

The first tracked run establishes a baseline, so it has no prior run to compare. A later run can also show a skipped or unavailable comparison if its baseline has expired or the definition changed in a way that prevents a trustworthy diff.

Numbers you will see

Section titled “Numbers you will see”
  • Total results for each run.
  • Joined and left counts when tracking is active.
  • Trend direction compared with the previous run.
  • Run status and any comparison limitations.