How many overrides per day is healthy?

In a 200-machine shop, single digits per day usually indicates a healthy balance. Dozens per day suggests the model is missing constraints; zero suggests the planner has stopped using the system.

Should overrides be auditable?

Yes. Every override should record who, when, and why — both for accountability and to feed back into the model as a candidate new constraint.

Do overrides break replanning?

Only if the engine ignores them. A good engine treats pinned operations and locks as hard constraints in every subsequent replan.

Planner Override — Manufacturing Scheduling Glossary

Definition

A planner override is a deliberate manual change to the system-generated schedule — pinning a job, blocking a resource, locking a sequence, or inserting a hot order. Overrides are not failures of the engine; they are the planner's mechanism for injecting business judgment, customer relationship knowledge, or constraints the data model does not capture.

Why it matters

The right number of planner overrides per day is not zero. A scheduler that cannot be overridden is a scheduler the planner does not trust. A scheduler that requires constant override is a scheduler that does not understand the floor. The healthy middle is an engine that absorbs the routine and surfaces the exceptions for the planner to decide.

Common failure mode

Either extreme: a system that refuses overrides (planner ignores the system, runs the shop on a whiteboard) or a system that requires constant overrides (planner spends the whole day correcting it). Both end with the system going unused.

How Skody approaches it

Skody allows planners to pin operations, lock sequences, block resources, and inject business priority — and respects every override as a hard constraint on subsequent replans. The planner's judgment is treated as a first-class input, not a workaround.

Dispatching

Telling each operator and machine which job to run next, in what order, right now.

Operational Trust

The condition where the floor believes and executes the schedule the planner publishes.

Dynamic Replanning

Recalculating the production schedule continuously as floor conditions change.

Schedule Instability

When the schedule changes so often that the floor cannot rely on it.