Why it matters
In a busy queue, two agents can grab the same ticket within seconds of each other. Without collision detection, both compose a reply, both hit send, and the customer receives two messages from "support" that contradict each other or repeat the same information. Either outcome is embarrassing for the team and confusing for the customer.
Even when the replies do not conflict, collision wastes time. One agent's draft was unnecessary, they have to abandon it, and the queue has effectively absorbed two minutes of agent capacity for zero customer benefit. In a 5-agent SME team, a few collisions a day add up to lost throughput that could have been spent on tickets actually needing attention.
The risk in over-locking is the opposite extreme: the helpdesk locks a ticket the moment it is opened, and a junior agent who genuinely could have helped sees only "Sarah is viewing" with no indication of how long that has been true. Good collision detection is informational rather than prohibitive: it warns, it does not block, and it expires the warning after a few minutes of inactivity.
How KimonDesk handles it
KimonDesk shows a small avatar bubble on every ticket card whenever another agent has the ticket open. When you open the ticket, a banner at the top of the conversation panel surfaces who else is viewing, who is currently typing, and how long they have been active. The banner clears automatically two minutes after the other agent stops typing or closes the tab.
The customer-facing reply box also pauses outbound sends if a colleague is mid-reply, with a soft "Sarah is replying, send anyway?" prompt. You can override the prompt and send if the situation warrants, and the override is logged to the audit trail. Collision detection works across channels, so two agents replying on chat and email get the same warning.
Read about automation in KimonDesk, or see how internal notes handle the related case of agents coordinating explicitly.