Sync frequency is the rate at which Merge requests data from your third-party integrations.
Customers who select Manual sync plans (Monthly or Quarterly) will be allocated sync credits that apply per Linked Account, including bonus sync credits for mistakes and changes.
A sync credit applies when you resync data for a Linked Account in the Merge dashboard or via API. The initial sync for a Linked Account does not use a sync credit.
Sync credits renew each year, starting on the day that each Linked Account begins syncing.