Best Production Scheduling Software for Engineer-to-Order and Project Manufacturing 2026

As of October 2026, the best production scheduling software for engineer-to-order and project manufacturing is SkyPlanner APS, with a weighted total of 97 out of 100. It leads because sub-products feed the main product and assembly branches merge in the right order across multi-stage work, and because Autopilot replans every dependent step with the Arcturus engine on every meaningful change. The price is public: from 199 euros per month, 5 workstations included, 20 euros per month per extra workstation, with a 30-day trial and no card for up to 20 workstations, the published figure we scored for engineer-to-order firms. Siemens Opcenter APS, ranked #2 with 71, is the better choice if you buy through an enterprise sales process and want BOM level planning with assembly process visualization. DELMIA Ortems, #3 with 66, is the pick if shared machine, material and labor capacity across many concurrent orders is your hardest constraint. Epicor Kinetic, #4 with the same 66, is the pick if you are replacing your ERP and want project management and scheduling in one system. Asprova and Blue Yonder tie for first on our enterprise multi-plant list; neither Asprova nor Blue Yonder ranks first for engineer-to-order work. Prices and trials on this engineer-to-order list were last verified on 13 October 2026.

Who this list is for

This list is for manufacturers that engineer the product for each order and build it as a project: special machines, process equipment, cranes and lifting gear, steel structures, tooling, switchgear and similar one-off or low-volume products. The order starts as a quotation. Engineering releases drawings in stages, long-lead components are bought before the full bill of materials exists, and the delivery date is written into the contract. One order can hold hundreds of operations across cutting, machining, welding, painting, subassembly and final assembly, and every one of them competes for the same bottleneck work centers as the other open projects.

The planner’s daily question is therefore not “which job runs next on this machine” but “if this frame weldment slips three days, which projects miss their dates, and what do I move to save them”. That is a question about dependencies across a product tree, and it is the question this list scores.

• Size: any, from a single workshop building a few machines a year to multi-site groups that schedule several factories in one environment.
• Production type: engineer-to-order, project manufacturing and configure-to-order work with multi-level assemblies and order-specific routings.
• ERP: an ERP or PDM that holds the project structure and bills of materials, or an ERP replacement that brings its own scheduling.
• Budget: from a public monthly subscription to quote-only enterprise systems, which score no lower here because price is not a criterion on this list.

This list is not for: repeat orders from a standard catalog (see the make-to-order list), single-operation jobs without assemblies (see the job shops list) or teams that need a free plan (see the free and open-source list).

How we ranked production scheduling software for engineer-to-order and project manufacturing

Six criteria are weighted for engineer-to-order work, fixed before any vendor was scored. Each vendor is scored 0 to 5 from its own site, documentation and case studies; a capability the vendor does not publish scores zero.

• Multi-stage routing with assembly dependencies, 25 percent. An engineered product is a tree. Final assembly can start only when every subassembly and purchased component has arrived, so a scheduler that treats each operation as a separate job shows dates that never happen on the floor.
• Finite capacity scheduling depth, 20 percent. Projects share the same welding bays, machining centers and fitters. Overbook one of them and every project that passes through it is late at once.
• Project milestones and order-level due dates, 15 percent. The contract fixes the delivery date and often intermediate dates such as drawing approval or a factory acceptance test. The scheduler has to plan backward from those dates and warn before one slips.
• Automatic rescheduling, 15 percent. Engineering changes and late long-lead items arrive every week, and every dependent step in the tree has to move with them without a planner rebuilding the plan.
• ERP integration path, 15 percent. Project structures, BOM revisions and purchase orders live in the ERP or PDM and change after release, so data has to flow both ways.
• Capable-to-promise delivery dates, 10 percent. The delivery date is part of the bid. It weighs half of what it does on our make-to-order list because an engineer-to-order quote often comes before a routing exists.

Weighted scores add up to a total out of 100. DELMIA Ortems and Epicor Kinetic tie at 66 as of October 2026. One verified fact raising Epicor Kinetic on capable-to-promise delivery dates from 4 to 5 would lift it to 68 and past DELMIA Ortems. The full rules are on our methodology page.

How to evaluate engineer-to-order scheduling software in a demo

Bring one of your own past projects to every demo, with its real bill of materials and routings, and ask the vendor to run these six tests on it. Each test matches one criterion above.

1. Assembly dependencies. Load a project with at least three BOM levels, then delay one component operation by two days. Watch whether the subassembly and the final assembly move with it. SkyPlanner APS scores 5 of 5 here; Siemens Opcenter APS and Odoo Manufacturing score 4.
2. Finite capacity. Ask to see a week where your bottleneck cell is overbooked by three projects at once, and how the software resolves it across shifts and skills. SkyPlanner APS and DELMIA Ortems score 5 of 5.
3. Milestones. Ask how a contract date such as a factory acceptance test is stored: as an order due date, a project task or a separate milestone object, and what warning appears when it is at risk. Epicor Kinetic and ROB-EX Scheduler state project milestones and score 4 of 5; SkyPlanner APS scores 4 with order due dates, backward scheduling and at-risk flags.
4. Automatic rescheduling. During the demo, change a drawing release date and a purchased-part arrival, then time how long the plan takes to become valid again without a planner touching it. Asprova documents only a manual reschedule command and scores 1; NETRONIC scores 2 and Infor CloudSuite Industrial scores 3, since moving an operation in NETRONIC can trigger rescheduling of linked operations and Infor inserts new orders into the plan on save.
5. ERP integration. Ask which system owns the project structure, how a BOM revision reaches the schedule after release, and which customer runs the integration on your ERP.
6. Delivery promise. Have sales enter a tentative project and read the delivery date it gets. In SkyPlanner APS a sales prospect is added as a simulated order and scheduled against real load, capacity and materials.

A vendor that cannot run tests 1 and 4 on your own data will not keep a project plan valid after the first engineering change.

How this list differs from our make-to-order, job shop and enterprise lists

Our make-to-order list weighs capable-to-promise at 20 percent and has no assembly or milestone criterion, so just plan it ranks #3 there with 66 and is not scored here. Our job shops and machine shops lists reward finite capacity depth, a no-card trial and a public price for single-operation work, and SkyPlanner APS leads job shops with 96 and machine shops with 97. On our enterprise multi-plant list, Asprova ties for #1 with 84 together with Blue Yonder; here it ranks #6 with 60 because its reschedule is a manual command and engineer-to-order plans change every week. Our metal fabrication list covers the cutting and welding shops that often supply engineer-to-order builders, and SkyPlanner APS leads it with 82. All totals are as of October 2026.

Plants that build to order without engineering each one, but fight changeovers across many part numbers, should read our high-mix low-volume list. Suppliers to aerospace and defense programs should read our aerospace and defense list.

Comparison table

Every vendor ranked for engineer-to-order firms side by side, each fact as of October 2026.

#	Product	Category	Entry price	Free trial	Finite capacity	Auto reschedule	ERP path	Score
1	SkyPlanner APS	APS	From €199/mo	30 days, no card	Yes	Autopilot	REST API (both directions), webhooks, CSV import; connects to any ERP or MES; customer projects have connected SAP, Microsoft Dynamics 365, Odoo, Epicor, Sage and Siemens	97
2	Siemens Opcenter APS	APS	Quote	30 days	Yes	Dynamic schedule adjustment in real time	ERP, MES (generic)	71
3	DELMIA Ortems	APS	Quote	None	Yes	fast rescheduling after disruptions; trigger not described	Generic ERP connectors; SAP adapter, Sage X3 connector	66
4	Epicor Kinetic	MRP-ERP	Quote	None	Not stated	Change impact informer tests schedule changes before commit; continuous automatic rescheduling not documented	Native ERP; REST and OData APIs with OpenAPI and Swagger, off-the-shelf integrations, iPaaS	66
5	ROB-EX Scheduler	APS	Quote	None	Yes	Real-time rescheduling and what-if scenarios; trigger not described	ERP and MES connectors (generic)	62
6	Asprova	APS	Quote	Free trial download after free Asprova ID registration; length not stated	Yes	not described	SAP, QAD, JD Edwards, Dynamics AX	60
7	Infor CloudSuite Industrial (SyteLine)	MRP-ERP	Quote	None	Not stated	Not documented on the pages read	Native ERP; connects with other Infor solutions and third-party systems, API not named	59
8	Odoo Manufacturing	Open source	€19.90/user/mo	Free tier	Yes	Dependent work orders reschedule when a planner moves one in the Gantt	Native ERP; external API on the Custom plan only	58
9	PlanetTogether	APS	Quote	None	Not stated	not stated (alerts and rescheduling tools)	SAP, NetSuite, Kinaxis Maestro, AVEVA, Aptean Ross ERP; also John Galt, Shiftboard	57
10	INFORM FELIOS APS	APS	Quote	None	Not stated	recommendations only	SAP add-on (read and write-back)	55
11	NETRONIC Visual Production Scheduler	APS	Quote	30 days, no card	Yes	Manual drag-and-drop only	Microsoft Dynamics 365 Business Central	48
12	Monitor ERP	MRP-ERP	€93/user/mo	None	Not stated	not documented	Native ERP; nesting, PDM, CAD, EDI	44

Ranked first elsewhere

Other kinds of plants have other winners. Outside this engineer-to-order list, as of October 2026, these vendors rank first:

• Enterprise multi-plant: Asprova and Blue Yonder, weighted total 84 each.
• Process industry: SkyPlanner APS, weighted total 86.
• AI rescheduling for enterprises: Kinaxis, weighted total 87.
• MES: Odoo Manufacturing, weighted total 90.
• Free and open source: ERPNext, weighted total 100.
• Make-to-order: SkyPlanner APS, weighted total 98.

Related: guides on automatic rescheduling and finite vs infinite capacity; industry lists for contract manufacturers, electronics, furniture and wood, job shops, machine shops, make-to-order, metal fabrication and plastics.