When you open a conversation that was handed off, a notice shows up right above the messages: “Handed off: [source assistant] → [destination assistant] · [reason]”. It’s purely informational — the conversation is still viewed and replied to exactly the same.
If a conversation has been handed off more than once, a “View history” link also shows up next to the notice, with the full chain in order.
Important — The customer never notices
There’s no transition message or notice to the customer when a handoff happens — it’s still the same thread, the same channel, the same number. The notice here is exclusive to the inbox, for your team.