Communication from R/3 ® R/2 takes place with the following transactions (see the figure below):

• Goods movements from Warehouse Management

• Confirmation of differences (with inventory differences)

• Transmission of picked quantities for R/2 deliveries

If there is a process from R/3 ® R/2, the data can be transmitted in different ways:

• Manually

• Automatically (batch process)

• Cumulatively

Here the data to be transmitted is placed into a queue as soon as a transfer order has been processed. The data is then transmitted when the user manually activates the driver.

The data transmission can be automated using batch processing. A batch job transmits the communication documents of a queue at regular intervals.

Direct transmission of individual warehouse transactions means that each transfer order initiates an RM posting. If, for example, finished goods are delivered to production in pallets, a communication record is transmitted to R/2 for each pallet and a goods receipt (GR) document is created.

For this reason, it is often advisable to execute the posting in Inventory Management for an accumulated quantity of material rather than for each transfer order individually.

With this type of data transfer, the WM stock of the posted material is accumulated in the interim storage record (for example, GR area with a dynamic coordinate based on the production order). The transfer can be manually initiated (via transaction LD11) or it can be planned (using report RLDLVS10) as a regular transfer with a variant to be processed in the background. A communication record is created for each material for the total interim storage quantity. The system transmits this quantity to R/2 and an RM document is generated automatically.

The type of transmission can be defined by material. For certain materials, such as slow-moving items, it is often necessary to have the available quantity updated in Inventory Management as soon as possible so that the material can be scheduled for requirements.

Other materials, on the other hand, can be transmitted on a cumulative basis so that the communication process is not overloaded and the number of RM postings is reduced.

The time of communication is determined in the following manner:

• If the communication time has been set based on materials, the system checks the warehouse data of the material to determine whether the indicator is set for immediate transmission.