The information density of an override is higher than the information density of an acceptance. Accepting a recommendation tells you only that the recommendation was plausible. Rejecting it tells you something about the world that the recommender did not see — a constraint, a context, a value judgment, a piece of history. Capturing the why behind overrides is, in effect, a way of harvesting the parts of judgment that have not yet been encoded into the system.
The simplest pattern is to ask. When an auto-assignment is overridden, the system prompts: "why did you change this?" The answers are short — "Sarah is on PTO," "Marcus is too junior for this one," "Account is in the EU, Jin handles those" — but they are structured enough to feed back into the recommendation engine over time. After three months of capturing overrides, the engine knows things about the team's actual operational reality that no one ever sat down to document.
The hidden expertise this surfaces is the most striking output. In every product organization, there is a collection of unwritten heuristics — "don't put P0s on juniors," "the checkout area is owned by whoever shipped the last refactor," "Acme's tickets go to the senior on call regardless of round-robin" — that exist as oral tradition. They are real rules, they are followed consistently, and they are completely invisible until someone overrides a default and explains why. Once captured, the heuristics become part of the routing model.
A second-order observation is that overrides reveal an implicit org chart. The official reporting structure says one thing; who reverses whose decisions says another. In organizations we have studied, the override graph — who overrides whom, how often, in what categories — corresponds more closely to actual influence and expertise than the formal chart does. This is not a controversial finding inside the organization; everyone knows the real influence map. It is just rarely made explicit.
The risk of capturing overrides systematically is that the data, once it exists, can be used in ways that were not intended. An override-pattern dashboard meant to improve routing can become a performance-management artifact; a heuristic meant to encode tribal knowledge can become a rule that no one is allowed to break. The organizations that handle this well treat the override layer as model-input data, not surveillance data. The line is not always easy to hold.