Before diving into the specifics of the SAP ecosystem, let’s start with a general definition of MES. The acronym stands for Manufacturing Execution System. At its core, an MES manages and monitors shop floor processes in real time. Within the automation pyramid, MES sits between the production supervisory level and the company’s ERP system, forming a critical link between the shop floor and the enterprise or management level. Without a MES, manufacturers risk “flying blind” because of the missing instant connection between their plans and real operations.
So, what functions are we actually talking about? A full-fledged MES typically covers production execution, real-time data collection from the shop floor, quality management including traceability, resource availability and utilization, and the tracking of key performance indicators such as OEE (Overall Equipment Effectiveness).
As companies strive to gain or maintain a competitive advantage in the era of Industry 4.0, manufacturers must find ways to increase efficiency and profitability. A modern MES plays a vital role in achieving these goals. Once a company reaches a certain scale, the question is no longer if an MES should be implemented, but rather which MES to choose.
When evaluating MES vendors, plant managers inevitably come across SAP. SAP is one of the leading providers in this space, supported by numerous implementation partners, such as concircle, that help manufacturers on their journey toward greater resilience. One key aspect I’d like to highlight is the potential for vertical integration within the SAP landscape. Manufacturers can seamlessly integrate solutions across the entire supply chain and avoid data silos—from forecast creation, through S&OP planning and detailed scheduling, all the way to shop floor execution.
There is not a single product called SAP MES. Instead, several product names appear within its manufacturing portfolio:
SAP ME (SAP Manufacturing Execution) manages and controls discrete shop floor production from start to finish. It is mostly used in the discrete industry, but it can also be used for use cases in the process industry. SAP MII (SAP Manufacturing Integration and Intelligence), on the other hand, can be used in both discrete and process industries. It helps close the gap between ERP systems and the shop floor and is often used in combination with SAP ME exactly for this reason. In practice, SAP MII is very often used primarily for integration between SAP ERP and SAP ME. While SAP ME is a standardized application designed to be configurable, SAP MII typically requires custom development to implement specific business logic. For both solutions, mainstream maintenance will end in 2027, with extended support available until December 31, 2030.
There are, of course, paths forward for companies still running SAP ME/MII: An obvious successor is SAP Digital Manufacturing, previously known as SAP Digital Manufacturing Cloud (SAP DMC). We’ve already discussed different migration scenarios based on the current SAP ME/SAP MII setup. If you are interested in a deeper dive, have a look at my colleague’s thoughts on this topic.
SAP Digital Manufacturing, introduced in 2018, is a state-of-the-art platform designed to manage and control shop floor processes. While SAP ME is an on-premise MES solution, SAP Digital Manufacturing is built on the open, cloud-based SAP Business Technology Platform (SAP BTP) and integrates natively with SAP S/4HANA. It is SAP’s flagship shop floor solution and will likely become synonymous with the term “SAP MES”.
The benefits are clear: SAP Digital Manufacturing is a modern and robust MES that addresses shop floor needs and ensures visibility beyond the production level. Thanks to quarterly releases, new functionalities are regularly introduced. Additionally, a vast ecosystem of partners is able to offer the necessary flexibility where standard functions reach their limits. Let me mention conDNC as just one such example from our team. This smart CNC application for operator guidance and DNC processing increases efficiency on CNC machines. It is a good fit for companies that strive to expand existing processes and tighter intertwine their IT infrastructure and manufacturing.
Nevertheless, there is no one-size-fits-all solution in manufacturing, and a full-fledged MES isn’t the perfect solution for everyone. While SAP Digital Manufacturing is very powerful, there are cases where the solution is simply oversized relative to actual production needs. In such instances, the resources required for implementation and operation may not justify the expected results.
If this is the case in your production environment, there are alternative approaches, such as an execution system directly integrated into SAP Cloud ERP (conOE) or a highly customized MES solution like conMES. However, when your production requires a cloud-based MES with regular updates and state-of-the-art capabilities, we can take a closer look at how to implement SAP Digital Manufacturing.
This is not an implementation guide, but rather a brief yet important reminder that the key elements of success are preparation and people. Be clear about your goals, scope, and budget from the outset. Effective preparation also involves proactive risks identification and the creation of contingency plans.
Make sure you have the right talent on your team-both internally and externally-and ensure clear, consistent communication with all stakeholders.
Selecting the right partner is a critical step in this process. Here are some key considerations:
Ultimately, there is no universal approach that fits every manufacturer. The right solution—and the right implementation strategy for “SAP MES” or any other solution—must align with your specific business goals, production complexity, and organizational readiness.