APICS Planning in Business Central: A Field Guide for Consultants

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After 30 years in the ERP trenches, and more than 15 of them focused on Business Central and NAV in factories across Greece, UK and Europe, I can tell you one simple truth: if you don’t really understand APICS principles, your Business Central manufacturing implementations will sooner or later hit serious problems.

This guide maps the classic APICS planning hierarchy straight into the realities of Business Central. This is exactly how I use it on the shop floor.

1. The ERP Foundation (Master Data & Global Rules)

Everything starts with solid master data. In BC this means Base Calendars, Items, Production BOMs and Routings.

Start by setting up your Base Calendars (Tell Me → Base Calendars) and assign them to Work Centers, Machine Centers and Vendors. Then go to the Item Card, Planning FastTab. This is where the heart of planning lives. You must set Replenishment System, Reordering Policy (I use Lot-for-Lot a lot for finished goods and Fixed Reorder Qty for components), realistic lead times, Safety Stock and Dampener settings. For different warehouses use Stockkeeping Units.

Most important: Always keep your Production BOMs and Routings Certified. If they are not, the planning engine simply ignores them and you will wonder why nothing works.

2. MPS (Master Production Schedule)

MPS is about creating a stable plan for your finished goods. It takes forecasts and customer orders and turns them into something the factory can actually follow.

In Business Central you do this in the Planning Worksheet. Run Calculate Plan with MPS ticked and your Demand Forecast included. Use Time Bucket and Dampener Period on the items to create some stability. You don’t want the system changing the plan every day. After reviewing, promote the near-term orders to Firm Planned. This is your way of telling the whole company: “This is serious now.”

3. MRP (Material Requirements Planning)

Once MPS is stable, MRP explodes the demand through the BOMs and tells you what components you need and when.

Again in the Planning Worksheet, but now with MRP enabled. The best friend here is Order Tracking (pegging). Always check why the system wants to buy or make something. When you’re happy, use Carry Out Action Message to create the production and purchase orders.

4. CRP (Capacity Requirements Planning)

MRP may say you need 500 pieces by Tuesday, but CRP answers the important question: “Do we have the hours to actually produce them?”

This depends on your Work Center and Machine Center setup, especially Capacity, Efficiency and the calendar. After every planning run, check the Work Center Load page. If you see big overloads, you must move orders or split them.

A practical warning: Use Capacity Constrained Resources very carefully. Only mark your real bottlenecks. If you mark too many, the planning becomes nervous and strange.

5. SFC (Shop Floor Control)

This is where the plan meets reality. Production orders move:

Simulated → Planned → Firm Planned → Released → Finished

Never Release an order before the materials and capacity are truly ready. Once Released, use the Production Journal (or separate Consumption and Output journals) to post real usage and times. When the job is physically finished, set the status to Finished. This step is critical: it clears WIP, posts inventory and calculates the variances finance needs.

The Sequence I Always Recommend

Don’t jump around. Do it in this order:

1. Clean and certify all master data (Items, BOMs, Routings, Calendars)
2. Set proper planning parameters on Items and SKUs
3. Load forecast and run MPS
4. Run MRP
5. Check capacity (CRP)
6. Execute and post daily on the shop floor (SFC)

If you follow the logic behind these APICS concepts, Business Central stops being confusing and starts making perfect sense.