With the release 9.0, SAP combines its three systems Extended Warehouse Management (EWM), Transportation Management (TM) and Event Management (EM), that are most important for the operative logistics, on the common system platform SAP Supply Chain Execution (SCE), thereby offering a lot of potential for optimising the entire supply chain. Apart from the integration with TM and EM, EWM 9.0 offers a number of new functions: As far as the problem of changing quantities in delivered packagings is concerned, the standard version of EWM 9.0 offers a solution by using stock-specific units of quantity that will significantly facilitate the goods issue processes with different packaging units.
With the dashboard for warehouse performance, EWM 9.0 creates new and clearly arranged controlling and monitoring functions in the integration with the business objects. 15 key performance indicators for the warehouse logistics (Warehouse KPIs) are already included in the package. Based on the radio frequency technology, the standard version of EWM 9.0 includes a pick-by-voice integration. The timely planning of the gates in the yard is ensured by means of the Door Appointment Scheduling.
The release 7.02 reflects the replacement of the old SAP LES. Using migration tools for taking over the master data and processes from the SAP LES as well the Rapid Deployment Solution (RDS), a fast deployment of and conversion to SAP EWM shall be made possible.
Apart from other new functions in various areas such as Crystal Reports, printing of warehouse orders and supplies, the packaging planning is a particular highlight. Based on data on quantity, volume and weight, the planning of shipment HUs and thus of the entire packaging process can be optimised.
The release 7.01 includes expansions regarding the Material Flow System (MFS). On the performance side, the response times of the telegram exchange have been improved. The functions now also cover the requirements related to controlling the container conveyor equipment.
With regard to the close connection between warehouse and transport processes, the release 7.01 now also offers the integration into the SAP ERP Transport (LE-TRA). In addition, new processes for the processing of return shipments are made available by the returns management.
In release 7.0, SAP closes the process gap in the production supply existing until then. The Cross Docking process area is supplemented by the opportunistic Cross Docking as well as the Merchandise Distribution Cross Docking.
The scope of the resource management is extended by new functions such as Execution Constraint Management, semi-system managed work and duplicities. With the graphical warehouse layout, another step is made in the field of monitoring.
The release SAP EWM 5.1 is another important milestone in the history of SAP warehouse logistics. With the new Material Flow System (MFS) component, the EWM now features a fully integrated material flow calculator and thus significantly stands out in comparison to the old LES.
With the labor management, the EWM receives another brand-new component for the evaluation and planning of warehouse activities. Furthermore, additional integrated functions such as batch management, serial number management, packing specifications and quality management are made available. The catch weight management, the goods receipt optimisation and the kit-to-stock function offer additional new possibilities of process configuration. With the introduction of the graphical Warehouse Cockpit, the monitoring is extended by clearly arranged elements.
SAP EWM 5.0 is already in the Ramp-Up process. With the introduction of a new system philosophy, the first release 5.0 is provided with already known and new processes and functions using a completely new system basis and document structure. The organisational units were, for the most part, taken over from SAP LES and supplemented by new organisational units.
With regard to their functions and dependencies to one another, the individual organisational units are now fully integrated. Particular importance is attached to the integration of the functions that are not optimally integrated into the LES such as multi-stage movements, mobile data collection, Handling Unit Management, Yard Management, commissioning waves etc. A lot of new processes such as deconsolidation, kit-to-order, warehouse reorganisation, slotting as well as the warehouse management monitor as central monitoring instrument complete the release 5.0.
In 2006, the last noteworthy development in the LES is made available in release ECC 6.0.
It enables partial goods receipt with decentralised processing.
The release mySAP ERP 2004 only provides some additions in the Direct Store Delivery Backend area.
It becomes apparent, that LES is on the downgrade.
The extension set 2.00 of the release 4.7 contains additional submodules that are connected to the core components of the LES. The submodule "Direct Store Delivery Backend" supports direct deliveries to the subsidiary branch offices carried out by the manufacturer and is therefore a supplement to the transport component (LE-TRA).
The Yard Management is another submodule, which integrates processes and functions for the control of the lorries at the company premises into the warehouse number. In this case, the integration into the warehouse processes is also rather rudimentary.
With the release 4.7, the extension set 1.10 is implemented in the LES. The so-called Task and Resource Management (TRM) is a very controversial function. It was primarily designed to enable the mapping of multi-stage movements, however, it connects itself below the transfer order logic using the system document "Task" and unnecessarily creates another system level for the processing of warehouse movements.
In some projects, it is used as basis for the development of material flow functions. As a material flow system, however, the submodule requires a lot of programming effort which is not only due to the lack of integration. In addition, it does not feature a standard interface to the programmable logic controllers (PLC).
While the release 4.5 was characterised by a consolidation of the logistical functions, new important function blocks were implemented in the LES in release 4.6. With the Radio Frequency (RF) submodule, SAP makes transactions available for the mobile data collection. In practice, this submodule proves to be a very rigid construct. When implementing customer-specific requirements, you often have to resort to unconventional methods in order to avoid modifications.
With the integration to the so-called Handling Unit Management, load carrier controlled logistics can now be realised. As an addition to the storage unit management, the handling unit information are also documented beyond the warehouse limits. It proves to be a disadvantage that a consistent HU management with LES affects both internal LES processes as well as adjoining ERP processes. The booking effort and the complexity of the booking processes in the system are not only increased by the new packing processes but also by additional auxiliary processes.
With release 4.5, the Logistics Execution (LE) is reborn as a separate module. From now on, the existing MM component WM and the existing SD components Shipment (SHP) and Transportation (TRA) form a common logistics solution consisting of Warehouse Management (LE-WM), Shipment (LE-SHP) and Transport (LE-TRA).
The term LES (Logistics Execution System) is used when LE is implemented as a decentralised solution. By now, LES is often used as a synonym for LE or WM.
SAP realises that a warehouse also features openings to the outside world. With the gate and provision zone in release 4.0, new organisational units are made available that aim to integrate the transport. However, the practical relevance of the integration is rather small. Another organisational unit is the picking area as a counterpart to the storage section.
The warehouse activity monitor is implemented as a central monitoring instrument. Planning the workload shall be made easier by means of the rough workload estimate. The requirements related to the material flow relations are increasing. With the new two-stage acknowledgement, the transfer order logic now enables you to map two-stage movements in the system. Due to the system-related technical dependency of the transfer order logic on the storage type, the WM is limited when mapping movements with multiple stages. With regard to an improved bundling of delivery positions, picking waves with first rudimentary functions are implemented.
With the release 3.0, additional integrated functions were implemented in the WM. With the organisational unit Production Supply Area (PSA) and the so-called control loops, processes for the product supply are created and the integration to the Production Planning (PP) is established.
The quality management is integrated via the link between the inspection lot processing and the associated stock posting changes. Via the integration of warehouse classes and water hazard classes of the module Environment, Health and Safety (EH&S) into the putaway process, functions are made available to the hazardous goods management. Best-before dates (BBD) have been implemented for the testing and management of perishable goods. In addition, the WM can be decentrally operated on an own hardware instance for the very first time.
The first functions for the warehouse logistics were already implemented in the SAP R/2 environment. These functions were partially integrated into SAP R/3. The term "Warehouse Management" (WM) was used to sum up the warehouse processes as a component of the Materials Management (MM) in release 2.0.
At this time, the terms for the SAP warehouse structure that are already known by now were defined. The organisational units warehouse number, storage type, storage section and storage bin have prevailed until this day and made it into SAP EWM. The transfer order logic is an integral part for the mapping of the material flows. The transfer order is the central document for (single-stage) movements in the warehouse. In the course of the years, the system-related technical concept of the transfer order management has proven to be too rigid for the ever more complex material flow relations in the warehouse. By using the storage unit management, the stocks can be managed on load carriers and transported in the warehouse. The common inventory procedures are also included in the range of functions. In this release, the WM only features an integration to the Inventory Management (MM-IM) and to the Sales and Distribution (SD-SHP) module. In addition, the batch management is integrated into the warehouse processing.