On-demand syncs are rate limited per accounting platform:
| Sync type | full_sync | Limit |
|---|---|---|
| Incremental | false (default) | 1 request per 5 minutes |
| Full | true | 1 request per hour |
Exceeding a limit returns 429 with a Retry-After header giving the seconds to wait. Incremental and full syncs are tracked separately, so a queued incremental sync does not consume the full-sync budget.