Talk to the customers who left, not just the ones who stayed.
Dashboards measure what somebody decided to measure, usually before the current problem existed. A rising churn number confirms that people are leaving. It can't say whether they left because something broke, because they never got the value they expected, or because their situation changed and the product no longer fits it.
The people who left are the ones who know why, and they are the group least likely to be asked. Theories built from the accounts that stayed describe the customers who tolerated whatever the problem is.
These conversations tend to surface the same objections repeatedly. Knowing in advance which reasons for leaving can be fixed, and which are about fit, changes what is worth offering and what is worth declining.
Direct evidence from the accounts that actually left:
Talking to both matters. Churned customers can describe the whole arc, including the point at which they decided. At-risk customers are still in it, so they describe what is happening now rather than what they remember.
Prerequisiterecords identifying which accounts have churned and which are flagged at risk. Without that the two groups can't be told apart.
A list of complaints isn't a plan. Grouping the reasons by what would have had to be different, and by who inside the company could have changed it, turns them into work a team can pick up.
Some customers leave for reasons no product change would have altered — a budget, a merger, a change of role. Separating those out stops the team spending against accounts that were never winnable, and makes the remaining number an honest one.
Prerequisiteaccount context — plan, tenure, usage history — held somewhere retrievable. Telling a fit problem from a product problem depends on it.