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These are the frequently asked questions for Extended Warehouse Management. 

Questions and Answers

List of Questions

What does EWM stands for?

EWM stands for Extended Warehouse Management.

It is a warehouse management system for large warehouse which also demand a complex level of logistic functionalities to deal with accuracy and timing activities.

This redesigned solution accommodates the core functionality of ERP WM with additional capabilities that match those available from third-party, state-of-the-art solutions. 

Below there is a ilustration of SCM Application Suit.

What are the settings in SAP EWM for ERP Integration?

The following SAP Help link describes the step by step to configure the integration between EWM and ERP:


How do I integrate ERP Material Master to EWM?

If you run ERP with EWM then whenever a material is saved in ERP the data must be transferred to EWM.

Usually it happens by CIF integration model. However, in cases where the ERP is not SAP, IDOCs is recommended.

Before creating the CIF integration model, you must first specify the EWM location in the system by RFC destination call and the logical system. 

The following document explains with screenshots the Material and Product screens:

Material / Product master data in SAP EWM 


In ERP you need two additional tabs: WM Execution and WM Packagin.

To understand how it is activate check it out:

Configuring Additional Material Master Screens in ERP


How does the integration between TM and EWM work?

You can integrate SAP Transportation Management  with SAP ERP by using iIDocs in SAP ERP and enterprise services in SAP TM.

IDoc-based integration guarantees downward compatibility with SAP R/3 software. SAP NetWeaver® Process Integration (PI) interfaces are used to map the IDocs in SAP ERP to the enterprise services in SAP TM.

The integration of SAP Transportation Management with SAP Extended Warehouse Management enables you to integrate SAP TM transportation planning with SAP ERP delivery and shipment processing and SAP EWM warehouse planning and execution.

Note that SAP TM is integrated with SAP EWM via SAP ERP. Data is not sent directly between SAP TM and SAP EWM.

More information in:

Integration of SAP TM and SAP ERP Shipment Processing


How does the integration between SNC and EWM work?

It happens indirectly via ERP:

  - Integration with ASNs

If you submit a ERP Purchase Order to the vendor, either via EDI or SNC the Vendor prepare the order for shipment and then phisically ships the product to the warehouse and they can do it via notification of shipment (ASN)  to the warehouse via SNC. The ASN created in SNC will create a delivery  (inbound) in ERP with also the relevant pack information.

When it is transferred from ERP to EWM it is called IDN (Inbound Delivery Notification) which is then converted to an Inbound Delivery.

  - Integration of Return ASNs

If the customer wants to return to you the product for any reason (for example, he thinks that product did more than it was advertised) you can create Return Sales Order  and provide back to your customer a return material authorization (RMA) number.

When the customer received the RMA they can prepare the product physically for shipment and they can inform in SNC the shipment notification.

That shipment notification will also generated a inbound delivery in ERP and in the same way as the other process it generated an IDN, etc...

How does the integration between Inventory Management to EWM work?

The integration of Inventory Management to EWM enable the process such as Global ATP and FI.

EWM must constantly inform ERP about changes in the inventory of the warehouse. There are the following methods of data integration between EWM and IM:

  • Adjustment from Inbound and Outbound deliveries
    The post of goods receipt or goods issue is transferred from EWM to ERP where it is posted and IM moved, the financial posting also occur at this moment along with the IM movement.
  • Posting Changes
    Posting Changes created in ERP becomes a Posting Change request in EWM (Posting Change can also be created from within EWM). Warehouse tasks are created when the Posting Change is activated. The PPF (Post --Processing Framework) has the settings to control the flow and actions of the warehouse tasks.
  • Physical Inventory adjustments
    The transaction code /SCWM/ERP_STOCKCHECK is used to compare the stock between EWM and ERP (MM-IM). In the transaction screen you inform just the warehouse number and the production name and the next screen the system will inform the total quantity found in EWM against the total quantity found in ERP (MM-IM).

How does the integration between Sales and Distribution (SD) and EWM?

EWM is indirectly integrated with SD, it is done when outbound deliveries or inbound delivery for return orders are transferred and processed in EWM being updated back in ERP when EWM finishes the processing.


How does EWM with Material Flow System (MFS) work?

In SAP Extended Warehouse Management, you use the material flow system component to connect programmable logic controllers for the conveyor system in automatic storage.

To understand how to Set Up the MFS, check the link:

Set Up the Material Flow System

If you want to optimizate the performance in EWM MFS, check the note:

1914127 - Performance optimization in EWM MFS


How do I set the printing functions in EWM?

You can find relevant information on following note:
1344974 - Consulting: Special cases in warehouse order printing


How does Batch Management work in EWM ?

Batch management is integrated in the inbound and outbound delivery process.

If you have defined that batch determination is to take place in EWM, no batches are transferred from ERP to EWM when an outbound delivery is created.

Instead, only characteristics that were selected as batch selection criteria either via the batch selection class or manually when creating the outbound delivery or sales order, are sent to SAP EWM and distributed.

SAP notes about Batch Management are below:

  •  990638 - Requirement for processes with batches in SCM-EWM
  • 1305605 - Overview: Batch management
  • 1305698 - Overview of communication/integration of batches ERP bet. EWM
  • 1550626 - EWM - Batch management requirement at plant level

How does Quality Management work in EWM?

EWM-QM gives you the option to carry out product checks using ERP-QM and links using qRFC as with the other interfaces.

The settings in EWM Customizing for this scenario must be as described below:

Cross-Application Components > Quality Inspection Engine > Central Settings > Communication with an External QM System > Define External QM Systems

Select the QM system provided by SAP: SAP_ERP_QM and choose "Installations";

Define an installation by entering the business key of the ERP system in the "Installation" field:

Extended Warehouse Management > Cross-Process Settings > Quality Management > Basics > Warehouse-Dependent Activation of Inspection Object Type

Maintain the fields "External QM System" (SAP_ERP_QM) and "Installation";

You must implement the Business Add-In (BAdI) QPLEXT_COMM_TEC in the ERP system so ERP will return the check results accordingly using qRFC.

You may find sample code for implementation as well as technical background information in the note 1278425 - Connecting ERP QM to EWM.


What does LIME mean? 

LIME stands for Logistics Inventory Management Engine and it near-real-time management of inventory quantities.

It is a totally independent set of coding designed to be used by multiple applications. 


How serial numbers work in EWM? 

You cannot set up an ERP serial number profile with stock check in Customizing.

Goods movement postings originating from EWM do not register serial numbers at the central ERP system. Therefore it is not possible to update serial number data in the ERP system.

EWM does not register serial numbers in internal goods movement postings at the ERP system. Therefore, serial numbers in the ERP system do not receive qualified stock information.