TL;DR
The share of chats people begin but quit before getting help, usually because the wait was too long.
Key Points
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Formula: (abandoned chats / total initiated chats) x 100, where an abandoned chat ends without the Website Visitor reaching an agent or resolution [2].
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It is driven mostly by wait time: roughly 38% of customers abandon after waiting more than 30 seconds, and about half abandon once a response takes over an hour [3].
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Benchmarks vary by sector. Many teams target below 5%, while SaaS B2B commonly sees 15-25% and e-commerce 30-45% [1][2].
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Distinct from a missed chat: abandonment counts visitors who quit, while a missed chat is one the team never answers. Both hurt Response Rate.
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Closely tied to First Response Time (FRT) and Average Response Time - the faster the first reply, the fewer people walk away.
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Cut it with adequate staffing, a clear Welcome Message, honest wait expectations, and Proactive Chat or a Chatbot to cover gaps [4].
How to measure and interpret it
Why chats get abandoned
Reducing abandonment in a lightweight setup
Sources & References
Last updated: June 25, 2026
Related Terms
First Response Time (FRT)
First Response Time (FRT) is the elapsed time between a customer's first message in a conversation and the first human reply from a support agent. It measures how quickly your team acknowledges an inbound request, not how long it takes to resolve it.
Average Response Time
Average Response Time (ART) is a support metric measuring the mean time customers wait for an agent reply across all messages in a period, not just the first one. It is calculated as total wait time divided by the number of replies sent.
Response Rate
Response rate is the percentage of inbound customer conversations that receive at least one human reply, calculated as answered conversations divided by total conversations over a period. It measures coverage (did anyone respond at all), not speed.
Live Chat
Live chat is a real-time, text-based support channel embedded in a website or app that lets visitors message a business and get answers within the same browsing session, without phoning or emailing. It pairs a customer-facing chat window with an agent or bot interface on the other side.
Post-Chat Survey
A post-chat survey is a short question shown to a visitor immediately after a chat conversation ends, asking them to rate the help they received. It is the standard collection mechanism for customer satisfaction scores in live chat, and the fastest feedback loop a support team has.
Proactive Chat
Proactive chat is a live-chat tactic where the business initiates a conversation with a website visitor automatically, based on behavior or context, instead of waiting for the visitor to open the chat first. The message is triggered by rules such as time on page, the URL being viewed, or whether the person is a returning visitor.
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