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Campaign Audience BuilderCampaign Audience BuilderCAB Documentation

Process only what changed between scheduled runs

Run less work

Delta processing reduces repeat work on large, frequently scheduled audiences. Instead of walking the whole audience every time, an eligible action can process only the members who joined since its last successful activation.

Scheduled actions · Performance

Campaign actions

Section titled “Campaign actions”
  1. Edit or create a scheduled add-to-campaign action.
  2. Turn on Only process members added since the last run.
  3. If campaign cleansing is enabled, choose Limit cleansing to this Audience to activate high-performance delta cleansing for leavers as well.

Existing campaign members are not refreshed during a delta run, and a person manually removed from the campaign is not re-added merely because they still belong to the audience. Status and mapped-field updates apply to new additions only.

Marketing Cloud data extensions

Section titled “Marketing Cloud data extensions”

The same Only process members added since the last run option sends joiners between full refreshes. Use Delta runs between full refreshes to schedule a periodic full reload. If left empty, a full refresh occurs only when CAB cannot use a delta baseline.

When no full-refresh cadence is configured, the interface warns: Members who leave the audience are never removed from the data extension. With a cadence, leavers remain until the next full refresh clears and reloads the data extension.

Safety rules

Section titled “Safety rules”
  • The baseline advances only after a successful activation.
  • The first run, or a run with no usable baseline, safely processes the full audience.
  • Delta processing is configured per scheduled action.
  • Manual actions do not show this option.