Intercom containment rate: the metric that politely lies
At 75% containment, the dashboard looks great. At 75% containment, half your customers had a bad experience. Here's how to actually read that number.
Intercom defines containment as "the conversation closed without human intervention". That's an operational definition, useful for Intercom. It's not aligned with what you actually want to steer.
Three scenarios hidden behind one containment
- Real resolution: the customer got their answer and is satisfied.
- Abandonment: the customer closed the tab for lack of a useful answer. Counted as containment.
- Channel switch: the customer left to email, DM via LinkedIn, or reopen an account. Counted as containment.
Without separating those three, your 75% containment covers both a 4.2 quality score and a 2.1 quality score equally well.
Minimum fix: net containment
The honest formula worth reviewing:
Net containment = gross containment − (7-day reopen rate × gross containment) − (rate of tickets opened by the same contact within 48h on another channel).
Observed magnitude
Across audited accounts, net containment runs 15 to 30 points below gross containment. A 75% gross containment becomes a net containment between 45 and 60%.The trap of quarterly targets
Committing to "containment +10 points" as a team goal mechanically pushes toward the worst case: aggressive auto-close, FIN mis-calibrated on complex topics, agents who resist escalating. Quality drops, containment climbs. The dashboard is green, retention moves the other way.
What to steer by instead
- Net containment (formula above).
- Average CSAT on contained vs escalated conversations.
- 7-day reopen rate on contained conversations.
The surface metric is a communication tool. The net metric is a steering tool. Both can live, but you don't hand team decisions to the first one.