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Preactor has been providing world-leading planning and scheduling solutions for 20 years. Today, more than 4,500 companies rely on Preactor.   

Preactor offers a family of solutions. While they are all based on the same core code, there are different levels of functionality and pricing so you can select the system that meets your needs and budget. 

Solutions combine with your ERP to make your production operations even more effective  – keep due dates and increase capacity utilization, while minimizing makespan and work in progress.

Advantages in 5 key areas

  1. Visualization – Presenting planning data in charts and graphs together with order and material relationships allows you to quickly identify issues and potential problems. For example, over and under loaded resources, data errors, potential delivery problems and problem sequences.
  2. Capacity utilization – Improved visualization, together with the algorithms provided with Preactor, means resources such as machines and personnel can be better utilized. Operators are not overloaded, bottlenecks are easily detected and material is not issued until it is needed.
  3. Reaction speed – You are able to react very quickly to potential problems and changing market demands, such as an urgent sales order. Using Preactor’s “What-if” capability you can explore alternative scenarios before deciding on the best solution.
  4. Material control – Where final products are built up from sub-parts or raw materials it is essential the production schedule remains “in sync” regarding material consumption. Otherwise, you run the risk of material shortages on the shop floor, due to late purchase orders or late production orders. The schedule in Preactor is material “aware.” It supervises material linkages and alerts you to any potential material shortages or sequencing errors.
  5. Coordination – Once the schedule is produced you gain an additional powerful benefit in the form of a coordination effect. This is due to the linking of supply activities, production activities and sales activities:
    1. Purchasing receive more reliable dates for when materials are actually needed in production. This helps to reduce stock levels and avoids incidences of material shortages.
    2. Production produce in the correct sequence to support internal needs, while simultaneously meeting sales priorities and due dates.
    3. Sales are able to provide customer promises and accurate feedback, leading to improved customer service.

The right Preactor for you

Preactor comes out of the box with a rich palette of functionality. But it can also be easily configured and extended to meet your specific demands without disturbing the core code. This ensures compatibility with future releases and facilitates technical support.

In the vast majority of cases, Preactor can be integrated with existing ERP and MES systems.

Preactor GMPS and APS integrated with ERP



Master production schedule

Starting from the Master Schedule, Preactor provides a Graphical Master Production Schedule (GMPS). This enables you to plan your production in light of confirmed sales orders, forecasts, current inventory, inventory limits (max/min per item), and the production capacity at hand.

The resulting plan can be adjusted manually, if needed, and then sent to the ERP system before running the MRP for manufactured sub-items and purchased items. If desired, the MRP can be run directly in Preactor 400 GMPS and then sent directly to Preactor Scheduler for planning of the actual production orders.


Preactor GMPS with planned production, stock profile and capacity usage.

Production schedule

Once you’ve decided how much should be produced and when, you get to unleash the true power of Preactor APS. Now, you are able to decide, in detail, what resources to use, when to use them and how best to use them. All the time taking into account both material and capacity constraints.

Preactor APS has the ability to model resources like machines, personnel and tooling as finite or infinite resources. Every resource can have its own calendar, so you can see when it is available or not.

The beauty of Preactor is that it allows you to model you real life production, taking into consideration buffer time, splitting of batches, which materials can go into a furnace or tank at the same time, skill set of the worker group, time limits between operations, and much more.

It also has the ability to keep track of material. Preactor links all the elements of an order together, whether they are purchased items or manufactured items. So anytime there is a change in delivery on a purchase order, or a produced sub-item, you can immediately see the effect on production, as well as the shipment of goods downstream.

Scheduling software features

Below is a brief outline of product features within the Preactor family.
For a more detailed list visit the Preactor product feature table »

Preactor 200 – Both primary resources as well as secondary constraints (e.g. tooling and operators) can be defined showing the capacity usage. Carry out forward/backward and bi-directional sequencing by order-attribute, such as due date or priority, etc.

Preactor 300 – Multiple constraints can be applied, such as limits on tooling and the number of operators. More complex routings can be defined, including preferred resources within a resource group. Progress updates at operation level can be made using mid-batch updates from the shop floor. Schedule analyses can also be carried out to compare alternate schedules.

Planned orders with capacity utilization of resource groups.


Preactor 400 – Incorporates Material Control where there is a flow of materials. A graphical view of an order is presented showing the materials involved in its manufacture, as well as any related orders that are supplying or consuming materials. It also offers additional optimization rules for minimizing setup time and late orders, using a preferred sequence at each resource, bottleneck scheduling (theory of constraints) and campaigning.


Order links and the material consumption.


Preactor 500 – Takes materials control a step further – where materials can be produced or consumed at any operation step within an order. Also includes an Order Enquiry feature for Capable-To-Promise, which takes into consideration existing available material, lead time of purchased items, and existing available production capacity.

Order enquiry creating the necessary orders and demand on the fly.

Preactor Viewer – Used for sharing plans and investigating “What if” scenarios without affecting the Master Scheduler system. Or, can be used to provide feedback and progress from the shop floor by updating actual progress in “Work to” lists.


Report on operation progress from the shop floor.


Find out more

Get in touch and discover exactly how Preactor could benefit your organization.
Kenny Andersson, or tel. +46 70 624 51 99

Or, find out more about Preactor now »


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