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Message → Mark as Seen
AI-generatedSummary
Marks a Messenger conversation as seen, using the supplied timestamp or the current time when the timestamp is 0.
Inputs
- Seen Timestamp (ms) — Timestamp in milliseconds to use for the seen marker. Defaults to 0, which the UI description says uses the current time.
Output shape
Not clear from the provided source pack.
The provided source excerpt does not show the operation’s runtime behavior or returned data.