Conversation lock
A platform-imposed freeze on a chat thread, usually triggered by AI moderation flagging off-platform contact attempts (phone numbers, emails, payment instructions).
Why it exists
Off-platform negotiation defeats escrow + review systems. Locking a conversation that exposes contact info protects both parties from fraud (escrow-bypass scams) and the platform from liability.
Unlock path
Admin review can lift the lock if the moderation flag was a false positive — typically resolved within 24 hours.