How Infor M3 Scheduling Workbench (M3 SWB) connects to Infor M3
Shared M3 BE database through PSMI
The workbench is native and shares the M3 business engine database. The PSMI interface program is the documented route for the exchange, so schedule results and M3 transactions work from the same data.
Write-back of scheduling results
Results are written to M3 as manufacturing orders, order proposals and capacity changes. Decide who may release schedules to the shop floor and keep that step explicit.
What data moves
| From | To | Data | When |
|---|---|---|---|
| M3 master demand schedule | M3 SWB | Demand to be checked against capacity and materials | Scheduling run |
| M3 work centers and routings | M3 SWB | Capacity, calendars, setup and run times | Run and on change |
| M3 inventory and supply | M3 SWB | Stock, purchase orders and manufacturing orders | Run |
| M3 SWB | M3 | Manufacturing orders, order proposals, capacity changes | Planner accepts schedule |
Setting it up
- 1Verify prerequisites in the docsCheck Infor's version-specific documentation for installation and PSMI requirements.
- 2Clean routing and work center dataFix run times, setup times, calendars and capacity, since schedules inherit every error.
- 3Define planning horizons and rulesSet short- and medium-range windows, priority rules and frozen zones.
- 4Model constraints that matterStart with the bottleneck work centers and key materials rather than every resource.
- 5Run in parallel with current planningCompare proposed schedules with what planners would have done.
- 6Train plannersTeach how to read conflicts, accept changes and override with reasons.
- 7Go live by areaMove one plant or product family at a time.
What usually breaks
- !Routing times from standards that do not reflect actual performance, producing unrealistic schedules.
- !Capacity calendars missing holidays or shutdowns.
- !Planners overriding schedules in M3 without telling the workbench, then fighting the next run.
- !Frozen zones too short, so orders already on the shop floor are rescheduled.
- !Material availability data wrong because receipts are posted late.
- !Treating the first run as truth instead of tuning constraints and rules.
A private AI layer across both systems
Schedule conflict explanation
A private assistant reads a proposed schedule with M3 orders and stock, then explains in plain language why an order is late.
Data quality scan
It compares routing times with actual reported times to flag routings that distort scheduling, for planners to review.
What-if drafting
It drafts options such as moving an order, adding overtime or expediting a purchase, with the effects shown, for a planner to approve.
Plain-language planning questions
Read-only questions such as which orders depend on the late material, answered from M3 data.
Try it here, free
Infor M3 Item Planning Parameter Worksheet
Work out safety stock and reorder point for each item and warehouse before loading planning parameters into M3.
When something else fits better
- Use M3's standard planning and capacity features if you do not need finite scheduling.
- Use a third-party APS if you need more advanced optimization than the workbench provides.
- Use spreadsheet planning for a single bottleneck resource if complexity is low.
Frequently asked questions
How does M3 SWB connect to M3?
Infor's documentation says it is native and shares the M3 BE database through the PSMI interface program. Results come back to M3 as manufacturing orders, order proposals and capacity changes.
Is this on-prem?
M3 is commonly run on-prem, and the workbench shares the M3 database, so it fits that setup. Check Infor's version documentation for supported platforms and prerequisites.
What does it schedule?
Short- and medium-range scheduling that checks the master demand schedule against capacity and materials. It is not a shop floor execution system.
Why do schedules look unrealistic at first?
Usually because routing times, calendars and material data are wrong. Fix the data and tune the constraints before judging the tool.
Pairing documented at docs.infor.com/m3swb/2026.x/en-us/m3swbolh/vvs1565757752367.html . Infor M3 Scheduling Workbench (M3 SWB) is a product of Infor; Netray is independent and not affiliated with either vendor.