Interface WVINVE03 
Use
The IDoc interface WVINVE03 can be used both as an outbound or an inbound interface. In an inventory, it
● sends physical inventory documents from the ERP system to the store (in outbound IDocs)
● transfers the inventory count data from the store to the ERP system (in inbound IDocs)
Integration
The IDoc interface WVINVE03 features the following functions:
● SAP Retail Store
With the inventory in SAP Retail Store, physical inventory documents can be sent from the ERP system to PDC units in the store using the IDoc interface. In addition, SAP Retail Store provides a variety of possibilities for tracking both the status of the PDC count in the store using existing outbound and inbound IDocs, and any error messages that might appear.
● SAP Retail Store functions in the connector
If you use a connector to transfer files, it must provide services for converting an outbound IDoc into an XML file or an XML file into an inbound IDoc.
● Application Link Enabling (ALE) layer in the ERP system
The IDoc interface WVINVE03 is part of the ALE layer in the ERP system. The IDoc interface also allows you to use other programs in the ALE layer (for example, the IDoc monitor, transaction WE05).
● Point of Sale (POS) interface in the ERP system
The IDoc interface WVINVE03 is a component of the POS interface in the ERP system. You can also use the monitoring functions that are available there (for example, the POS monitor, transaction WPER).
● Article-based inventory management (MM-IM) in the ERP system
The IDoc interface WVINVE03 is an interface for executing physical inventories in inventory management. The functions found there can also be used to process physical inventory documents. (Examples: Transaction MI01 – Create physical inventory document, MI04 – Enter inventory count, WVFD – Send physical inventory document).
Prerequisites
The partner profiles for outbound and inbound processing must be maintained in ALE Customizing in the ERP system for every store. In the ERP system, you also have to define an RFC destination that is assigned to the target system. The target system may be a connector or another non-SAP system (for example, a PDC server).
Features
Sending physical inventory documents
You can send physical inventory documents in outbound WVINVE03-type IDocs in different ways:
● You can select Send to PDC unit in the dialog Document creation in SAP Retail Store.(Prerequisite: the PDC procedure Mass processing has to be activated in Customizing in SAP Retail Store.) In this case the physical inventory documents are sent automatically as soon as they have been created.
● In SAP Retail Store, you can use the PDC monitor for the physical inventory to send previously unsent individual physical inventory documents manually. (Prerequisite: the PDC procedure Mass processing has to be activated in Customizing in SAP Retail Store.)
● You can send the physical inventory documents in the SAP GUI using transaction WVFD. (Caution: Sort by layout is not permitted with the RFC/IDoc-based PDC procedure and leads to an error message.)
You can use the PDC monitor inventory in SAP Retail Store to check which physical inventory documents have been sent with the IDoc interface. Any error messages that have appeared are also displayed.
When you create the outbound IDocs, the system first reads the physical inventory documents that are to be sent and then the master data that is necessary to execute the PDC inventory. This master data includes:
● The international article numbers of the articles in the physical inventory document
● The units of measure of the articles
● Descriptions (for example, descriptions of articles/stores).
When the data has been imported, the outbound IDocs are created and sent.
You can find a precise description of the interface in SAP’s Interface Repository.
Receipt of inventory count data
The PDC unit creates an XML file for each physical inventory document to enable the transfer of the inventory count results from the PDC unit to the ERP system. The XML file has to have the same structure as the IDoc-type WVINVE03.
If you are using a connector to transfer data, there are special help programs available that transfer these XML files to the ERP system. The XML files are stored in IDoc format in the ERP system, where they can be posted automatically.
When inbound IDocs are posted with inventory count data, the quantities are transferred from the inbound IDocs to the physical inventory documents. Multiple counts of the same article are accumulated in the process. Any error messages that appear during posting are logged on an item segment level. It is possible to post an inbound IDoc containing errors several times over. If you do so, only the item segments that previously contained errors will be posted again.
You can find a precise description of the interface in SAP’s Interface Repository.
Activities
If you use a connector to transfer data, the interface between the ERP system and the PDC unitsis made up of XML files in IDoc-type WVINVE03 format. The connector creates these XML files for outbound IDocs in the file system of the store PC, for example. Conversely, the connector reads XML files containing inventory count data that was created by the PDC unit, converts them into inbound IDocs, and sends them to the ERP system where they are posted.
In order to operate the IDoc interface, the software in the PDC unit has to complete 2 tasks:
● Import the XML files that contain outbound IDocs
● Create XML files that contain the inventory count data.