Order and operation identity
Each execution event needs a stable link to the production order, routing step or process segment it belongs to. Ambiguous order identities cause downstream reporting and genealogy problems.
Execution state
Common states include queued, released, active, paused, held, complete or cancelled, though every organization should standardize its own state model.
Quantities
MES may track started, completed, scrapped, reworked and remaining quantities. Clear unit-of-measure rules prevent totals from becoming misleading.
WIP visibility
Work-in-process visibility depends on knowing the last confirmed location and status of a unit, batch or lot. Scanner, operator and equipment events can contribute to that record.
Exceptions matter
The most valuable tracking often occurs around exceptions: holds, short material, failed checks, downtime or reroute decisions. Those events explain why a plan changed.