Sync
What syncing does after you connect, how long it takes, and the every-6-hours ongoing refresh.
When you connect an ad account, The Ad Spend pulls in a window of recent history alongside everything going forward. Sync is the process of normalizing your account's structure — campaigns, settings, changes, and metrics — into The Ad Spend's single data model, the same way regardless of which platform it came from. This is what populates History and what the rest of the product runs on.
How Far Back It Goes
Sync is a backfill of recent history, not an unlimited pull from the beginning of your account. Full history depth beyond that window is a paid feature — see History for how date range and history depth work by plan.
How long it takes
Sync runs in the background. You don't need to stay on the page or wait for it to finish — navigate away and come back. For larger accounts, sync reports progress while it runs so you can see where things stand.
What you see before and after
Before sync completes, the account shows as connected but still syncing. Its history and data aren't fully available yet.
After sync completes, the account shows as synced. Its timestamped history becomes browsable in Changes, and it joins ongoing monitoring so Trends and Alerts can run against its baseline going forward.
Ongoing Sync
After the initial sync, The Ad Spend keeps the record current automatically. Ongoing sync runs every 6 hours, so changes to your accounts stay reflected in History without any manual step.