Backfill Support

Last updated: Aug 30, 2025

When you add a new mapping, you can optionally backfill recent history (respecting your plan’s sync_lookback limit).

Step 1: Create a Mapping

Create either a profile or event mapping to select a Klaviyo metric and pick the address field. Tick Backfill to process recent data.

Backfills run via queued jobs. Peek at Sync History for batch progress, successes, and any retry info.