v2.4
Webhooks are live.
Engineering
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9 min read
Two-way sync without the horror stories
Writes are where sync tools go wrong. Our rules for when Tessel is allowed to change your data.

Priya Raman
Head of Product

Reading is safe. Writing is where sync products get uninstalled. Here are the three rules every Tessel connector follows before it changes anything in your tools.
The rules
One: a write is always attributed to a person, never to “Tessel”. Two: every write is reversible from the history for thirty days. Three: if the source rejects the change, the plane shows the source value, not ours.
These rules are the reason two-way sync ships disabled by default.
