ERP & MRP Planning calculator

Schedule Attainment Calculator

Schedule Attainment measures whether the shop completed what the schedule said it would complete. It is useful for daily management and planner credibility reviews.

What this calculator does

  • Calculate the share of scheduled orders or units completed as planned.
  • a supervisor needs to measure completed schedule versus the committed plan
  • It measures how much of the committed production schedule was completed as planned.

Formula used

  • Schedule attainment = scheduled units completed on time ÷ total scheduled units × 100

Inputs explained

  • Scheduled units completed on time: Count units or orders completed in the scheduled bucket without being late, short, or moved out.
  • Total scheduled units: Use the scheduled quantity for the same line, work center, family, and period.
  • Target schedule attainment: Use the production KPI or customer commitment target.

How to use the result

  • Use it during ERP cleanup, MRP review, production scheduling, S&OP prep, purchasing decisions, shortage meetings, capacity planning, or daily shop-floor execution reviews.
  • This is a planning estimate. Confirm final commitments against current ERP/MRP records, released BOMs and routings, inventory accuracy, supplier commitments, open work orders, quality holds, and shop-floor constraints.

Common questions

  • What is the Schedule Attainment calculator for? It measures how much of the committed production schedule was completed as planned.
  • What information do I need before using it? You need completed-on-time scheduled units, total scheduled units, and the target attainment.
  • How should I use the result? Use it to identify schedule misses, improve dispatching, and decide whether planning assumptions are realistic.
  • When is the result only an estimate? It is only an estimate when demand, inventory, lead time, routing hours, setup time, yield, supplier dates, or work-center capacity comes from forecast assumptions or stale ERP data instead of current orders and recent execution history.

Last reviewed 2026-05-12.