Zendesk holds the tickets: every question, complaint and request, with a requester, a status and a wait time. Slack is where the team actually talks: decisions, asks and updates in channels and threads, gone from view in a day. The ticket says "pending"; the thread about it in Slack has twenty messages, a workaround, and a promise to the customer that nobody wrote back to them.
Liaison reads Slack and Zendesk together, matches threads to tickets, and tells you which tickets are stuck in a conversation, what was promised, and which customers have heard nothing while the team talks.
On Professional we connect your tools, bring your data in and set up the first rules with you. Anything that moves money waits for your yes.
“Cut our month-end close from 4 days to 4 hours.” Marcus C., owner
$629 a month, or $500 a month on a 12-month term. Prefer to start on your own? Starter is $149 a month, self-serve, with a free trial first: 7 days, no card.

It drafts replies in your voice and sends only the kinds you approved once. It never closes a ticket on its own.
It answers when asked and posts the updates you approved, such as the daily escalation note. Nothing else.
The ones you give it access to. Private channels and DMs stay private unless you add it.
Liaison starts at $149 a month. Professional is $629 a month and Team is $2,950 a month for up to five seats. Every plan works with the tools you connect.
Thirty minutes with us, on your own tools. Bring the thing that eats your evenings and watch it get handled from your own inbox, calendar and books.
Professional is $629 a month and we set it up with you. Starter is $149 a month, self-serve, with the free trial first: 7 days, no card. Every plan is on the pricing page.