How far back can the initial backfill reach?
As far as your Wialon account retains data, and no further — the platform is the only source. Wialon Hosting defaults to a 400-day history period and removes older messages automatically, though the period can be extended on request to a Partner Success Manager. This is the argument for starting the mirror before you need the history rather than after: once messages age out of Wialon, they are not recoverable from anywhere.
What happens when Wialon changes its API?
We handle it. Extraction, schema migrations and any adaptation to upstream changes are part of the managed service, which is the difference between this and writing your own sync job.
What happens to the sync after an outage?
Sync state is tracked per entity, so an interrupted run resumes from where it stopped rather than restarting or duplicating rows. Gaps caused by a longer outage are backfilled on the next successful run.
Does it work with Wialon Local?
Yes. Wialon Local is supported alongside Hosting; the extraction targets your server instead of the shared platform, and the retention question usually disappears because you control the history period yourself.
Who owns the database?
You do. It is a normal PostgreSQL database with normal credentials, and the data in it is yours. If the service ends, the database and its contents go with you rather than being switched off.
Can we resell FleetSQL to our own customers?
Yes — that is what the white-label configuration exists for. Your brand and domain, your commercial relationship, your billing, with delivery and maintenance handled on our side.
Will extraction slow down our Wialon account?
Wialon meters message loading per user, and heavy requests are capped at three simultaneously per session, so a careless extractor can degrade the live interface for everyone on the account. Ours is paced against the published quotas and, where licensing allows, runs under its own account so it competes with nothing.