How to Set Up MTO Manufacturing in Dynamics 365

Dynamics 365 handles make-to-order (MTO) manufacturing out of the box, in both Business Central and Supply Chain Management. Whether it runs smoothly depends on how you have it set up. Even after you dust your hands from a successful setup, you may find undesirable symptoms still lurking underneath. This can be anything from fulfilment dates slipping to half-built jobs getting reassigned to other orders, long-lead parts arriving late, or custom parts piling up in stock. But not to worry. Almost all of this traces back to a handful of settings and master data, and those can be fixed without replacing the system. This guide walks through the seven setup steps that matter most. For each one, you’ll see how it works in Business Central and in Supply Chain Management, along with the mistakes we see most often in projects. It’s written for manufacturers implementing Dynamics 365, and for those already live whose make-to-order process isn’t holding up.

Key Takeaways

• Setting up MTO in Dynamics 365 comes down to seven steps: choosing what to build to order, checking capacity, calculating promise dates, linking production orders to sales orders, buying order-specific materials, handling order changes, and capturing job costs.
• Very few shops should build everything to order. Stocking common subassemblies and finishing to order is one of the simplest ways to shorten lead times.
• Promise dates are only as reliable as your routings, calendars and bottleneck capacity. Capable-to-promise can’t fix bad master data.
• Link each production order to its sales order, but decide how many bill of materials levels to lock so you can still reprioritize urgent work.
• Buy long-lead and customer-specific parts as soon as an order is confirmed, tied to that job, instead of planning them on reorder points.
• Capture costs per job from the first phase, so you can compare quoted and actual margins order by order.
• Business Central Premium suits most single-plant MTO shops. Supply Chain Management fits multi-plant operations, configure-to-order at volume, and intercompany fulfillment.

Setting Up MTO Manufacturing for Dynamics 365 in Seven Steps

Make-to-order means you build a product only after a customer orders it, so each order has to stay connected to its own production, materials and costs. These steps follow the life of an order, from setting up items and capacity to costing the finished job.

1. Choosing What to Build to Order

Decide this item by item, because very few MTO shops build everything to order. Microsoft’s production process overview describes the common pattern: early production steps run to stock, while the expensive steps, or the ones that create product variants, wait for a sales order. Stocking common subassemblies and finishing to order is one of the simplest ways to shorten lead times. In Business Central, the reordering policy on each item or stockkeeping unit drives this. Items set to Order are planned only for actual demand, while Lot-for-Lot, Fixed Reorder Qty. and Maximum Qty. keep stock on hand. Setting an item’s manufacturing policy to make-to-order also creates linked orders for make-to-order subassemblies. In Supply Chain Management, the coverage code does the same job: Requirement creates separate supply for each demand, while Period and Min./max. cover stocked items. The mistake we see most often is applying one setting to everything. Put every item on Order and lead times stretch, because nothing is ready when the order arrives. Put everything on a stocking policy and the warehouse fills with custom parts nobody else will buy.

2. Checking Capacity

Promise dates and schedules are only as good as the capacity behind them. Set realistic calendars, shifts and efficiencies for your bottleneck work centers, and use finite loading where it matters most. In Business Central, work center and machine center calendars define available capacity, and bottlenecks can be set up as capacity-constrained resources so planning respects their limits. High-mix shops that need detailed sequencing usually add a scheduling extension. In Supply Chain Management, resources and resource groups can be scheduled with finite capacity, and CTP uses that capacity when it calculates dates. Leaving every work center at infinite capacity makes every date look achievable on screen. Usually only two or three bottlenecks need finite loading, and the rest can stay simple.

3. Calculating Promise Dates

Promise dates should come from current material and capacity. Both products can calculate them that way, as long as routings, work center calendars and lead times are accurate. In Business Central, order promising on the sales order calculates available-to-promise and capable-to-promise dates. The Critical field on an item marks the components whose availability should count in those calculations, so one slow, essential part isn’t overlooked. In Supply Chain Management, set delivery date control to capable-to-promise (CTP), calculated as each sales line is entered or in batch for many orders at once. With Planning Optimization, keep supply for confirmed demand stops later planning runs from moving supply away from orders whose dates you’ve already confirmed. Turning on CTP won’t fix bad master data. If routing times are optimistic or work center calendars ignore shift patterns and maintenance, the system will promise dates the plant still can’t hit, just with more confidence.

4. Linking Production Orders to Sales Orders

A link between each sales order and its production order lets planners see which customer every job is for, and stops planning from handing that supply to another order. The trade-off is flexibility, so decide how many levels of the bill of materials to lock to the customer. In Business Central, the Sales Order Planning page creates production orders from a sales order with order-to-order links, either one order per item or a single project order for the whole sales order. Planning then leaves linked supply alone. If a customer cancels, that linked supply stays tied up until someone deals with it, so give cancellations a clear owner. In Supply Chain Management, production orders can be created from a sales order line, with subassembly orders added as pegged supply. Pegging shows how planning expects to cover demand, while marking locks supply to a specific order. Microsoft’s make-to-order supply automation lets you limit marking to a single level when planned orders are firmed, which keeps component assignments flexible further down. Locking every level to the customer makes it hard to reprioritize when an urgent order lands. Linking nothing means a planner can reassign a half-built job without realizing it belongs to someone.

5. Buying Order-Specific Materials

Long-lead and customer-specific components should be bought as soon as the sales order is confirmed, and tied to that job, because in MTO the slowest part usually sets the delivery date. In Business Central, put those components on the Order reordering policy so planning suggests purchases only for real demand, and run planning often enough that a new sales order doesn’t wait a week for its purchase orders. When something is urgent, the Order Planning page can plan a single sales order one bill of materials level at a time. In Supply Chain Management, a bill of materials line with the pegged supply type generates a purchase order for that material, or for a subcontracted operation, tied directly to the production order. The make-to-order automation features also let planning peg the latest possible supply to each order instead of the first available, which keeps earlier supply free for orders that need it sooner. Customer-specific parts on reorder points are the classic mistake. They either sit in stock waiting for an order that never comes or arrive too late for the one that did.

6. Handling Order Changes

Customers change quantities, dates and specifications after production starts. Decide who updates what, and make sure every change flows from the sales order to the production order and its materials inside the system. In Business Central, order tracking shows which production order belongs to a changed sales line, and production orders can be replanned or refreshed after component or routing changes. In Supply Chain Management, master planning’s action and futures messages flag supply that no longer matches demand, and CTP can recalculate the confirmed date. Changes passed along by email or a note on the job traveler are where most MTO errors start. When the sales order changes, the production order should change in the same system on the same day.

7. Capturing Job Costs

Every job should collect its actual material, labor, machine and subcontracting costs against the sales order it fills, so you can compare quoted and actual margins order by order. In Business Central, production orders created from a sales order carry that link, and a project production order groups every line of one sales order together. Finishing the order and adjusting costs gives you the actual cost to compare with the sales price. Engineer-to-order work that spans design and production is often better run through projects. In Supply Chain Management, each production order carries an estimated cost when it’s created and a realized cost when it’s ended, and pegging and marking connect those costs back to the sales order. Leaving job costing to a later phase is the most expensive shortcut. Without it, quotes keep repeating last year’s mistakes, because nobody can see which jobs lost money.

Diagnosing an Existing MTO Setup

If you’re already live, these symptoms usually point back to one of the steps above:

Choosing Business Central or Supply Chain Management

Both products support make-to-order, and every step above applies to either one. Business Central Premium covers most single-plant MTO manufacturers building standard products to order. Supply Chain Management earns its extra complexity when you need capacity-based promise dates across several plants, configure-to-order at volume, deeper pegging of long-lead supply, or one company selling while another builds. Our overview of Dynamics 365 for manufacturing compares the two in more detail, and our Business Central manufacturing guide and Supply Chain Management services go deeper on each product.

Tracking the Results

Pick two or three of these, record where they stand today, and check them again a few months after the setup changes.

Vetting Your Implementation Partner

A partner who has set up make-to-order before should have clear answers to these:

• • How will reordering policies or coverage codes be set for each item group? The answer should follow which items you build to order and which you stock, rather than one default for everything.

• • How will promise dates be tested? Ask to see dates calculated from your real routings and calendars before go-live.

• • What happens when a customer cancels or changes an order? There should be a defined process, with an owner, for linked supply.

• • When does job costing go live? It belongs in the first phase, since comparing quoted and actual margins is often the reason for the project.

Getting Started with MTO in Dynamics 365

MTO manufacturing works in Dynamics 365 when each customer order stays connected to its production order, materials and costs, and the seven steps above are what keep that connection intact. Most of them come down to settings and master data, which means they can be fixed without replacing the system. A practical first step is to review your last 20 orders. For each one, compare the promised date with the ship date, note where the time went, such as waiting for materials, waiting for a machine or a change mid-job, and compare the quoted cost with the actual cost if you can find it. Then match each problem to one of the seven steps. The pattern usually points to two or three settings that need work. If you’d like help with that review, it’s the starting point of our ERP Complexity & Value Assessment. Folio3 Dynamics has spent more than 20 years implementing Microsoft Dynamics for manufacturers. The assessment maps your order-to-production flow, recommends Business Central or Supply Chain Management, scores your data readiness, lists the integrations involved, and lays out a phased roadmap with the numbers each phase should move. If you’re already live, our team also reviews and fixes existing Dynamics 365 setups. Request an assessment or explore our manufacturing ERP services.

Frequently Asked Questions

Quick answers to common questions about setting up make-to-order in Dynamics 365.

MTO Setup Basics

Planning and Promise Dates