SAP WM & HU (nested) Stock Upload

I've recently faced the problem to upload the stock in WM

where HU management is active on the storage location.

As probably you already know in SAP there is also a

standard program to do this: <b>RHUWM_INITIAL_LOAD</b>  but in my opinion it requires a very well

structured input file, and it is not always so easy to get such a file from a

legacy system.

Moreover I had another complication, because our HUs were

nested, and using inbound delivery didn't seem to me so “easy-to-use”, so I

decided to upload the stock in another way that I'm going to explain, hoping

that it could be useful for others.

The process consists in "splitting the upload

process in 5 different easy steps:

1. Upload the stock in a storage location (e.g. XXXX,

managed only in MM without WM nor HU).

2. Create the lower level HUs.

3. Create the upper level HUs and assign at the same time

the lower level HUs to them.

4. Transfer the nested HU to the WM/HU managed storage

location (e.g YYYY).

5. Transfer the SU/HU in the final destination bin.

Here is a short explanation of the above mentioned steps:

1. I wouldn't go in depth into this point since it is not

the scope of this post

2. I've created an LSMW using

?Business Object (BUS3070)

?Method (CREATE)

?Message Type (HU_CREATE)

?Basic Type (HU_CREATE01)

In this LSMW you will have to indicate the data of the

lower level HU:

Header data: basically packaging material, External ID

Item data: basically material, quantity, unit of measure

plant, storage location, etc

3. I've created an LSMW using

upper level HU:

Item data: lower level HUs

Note: for this LSMW I’ve used a hierarchical source like:

UPPER_LEVEL

            LOWER_LEVEL

Since more lower level HUs can be assigned to the same

upper level HU.

4. You use a standard functionality inside HUMO to move

the HUs towards another storage location or in alternative it is possible to

use a LSMW by recording a VLMOVE (mov. 311)

5. Simple LSMW with recording on LT09….to transfer the SU

(upper level Hus become SU in WM)

That's it.

Have a nice stock upload!

Claudio

PS Please note that if you are working with single-level

HUs, you should ignore the step #3