The IDoc WMSUID01 can be used to report storage unit movements, such as stock transfers, to the SAP system and trace them there.

The partner profile input must be maintained for the message type WMSUMO.

In certain cases it is necessary for a storage unit transfer to be initiated in the external system. It is also advisable for the final storage bin assignment in the HRS to be made by the external system when a pallet is placed into stock. The executed storage unit movement must be reported to the WM system. A prerequisite here is that the storage unit is formed in the WM system and is thus also known there. The reported storage unit movement is posted in the WM system.

The IDoc comprises the segment E2LSUMX which is described in the following. The "Req." column indicates the fields in which an input must be made.

Using "Move storage unit" you can also include the external planned processing time.

The following must be taken into consideration when the segment E2LSUMX is sent:

• The field ‘LETYP’ for the storage unit type must not be transferred in every case

• The field ‘LZNUM’ is used when a transfer order is reported

• The confirmation indicator ‘KZQUI’ should normally not be set as the reported goods movement will already have been executed and is thus no longer subject to confirmation.

• The SOURCE data (source storage type, source storage bin) must not be sent as the storage unit, and thus also the storage bin in which storage unit is currently located, is known in the WM system.

• The field ‘NPPOS’ is only used in conjunction with a specific stock placement strategy, namely the pallet type strategy, and describes the precise position of the storage unit within a shelf section at which the unit was placed into stock.

• The fields ‘STATU’ and ‘REFNR’ are not used by the external system for reporting the movement.

The process by which the storage unit movement is reported by the external system can be simulated in the SAP system. We recommend that the procedures that are relevant to you be tested first in this way. You can use the report RLSUMO00 for this purpose.

In the case of a stock placement via the ID point, it can be appropriate to call up the named function module synchronously (directly) instead of using an IDoc, that is, to explicitly await the SAP reply. The scenario is as follows:

• TO for ID point is send by SAP to the external system. The pallet note is printed in SAP.

• The external system identifies the pallet and carries out the contour check.

• Depending on the result of the contour check, the storage unit type or other data is changed (or perhaps the destination storage type is determined by the external system).

• The external system calls up L_SU_MOVE_LSR synchronously and awaits the destination storage bin (or if has specified the destination, it waits for successful posting in the SAP System).

Possible double postings in SAP can be avoided because SAP can determine for sure where a pallet is located. If the pallet has already been moved, the function module delivers only the actual storage bin.