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Decentralised WM some clarifications

Former Member
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Please clarify some of the below points

1. Inbound/outbound are created in ERP and replicated in DWM via BAPI. When we are doing PGR/PGI will there be any accounting entries/documents in DWM? From sap help we saw the mentioned BAPI to be used u2013 InboundDelivery.ConfirmDecentral and OutboundDelivery.ConfirmDecentral but, both are not having accounting information. We donu2019t need financial entries in DWM. It should always happen in ERP. Is this possible?

2. Will DWM support physical inventory for the materials at warehouse level. Will there be any accounting entries coming in when we are writing off the stock as part of regular physical inventory counts. Are there any standard reports available to compare ECC and DWM for stocks , open IBDs / OBDs etc OR checking unprocessed / erroneous messages is the only way to compare them ?

3. How SAP is managing contingency for DWM? When PS1 is down for 4-24 hours how can we still continue to work in DWM without Inbound/Outbound updated information in DWM? Can we create deliveries directly in DWM system?

4. In case of contingency we need Purchase order and sales order information in DWM as this information cannot be extracted from PS1. Do we need all the purchase/sales related settings in DWM to create PO and SO? What all masters need to be migrated from PS1 to DWM?

5. Do we still need to configure some SD and Costing related settings in DWM to post PGR/PGI? Or Can DWM act as independent stand-alone SAP ERP system? How the WM related customization will be taken care after DWM implementation? Do we need to make customization in ECC and then import them to DWM or DWM will remain open for customization? What is the recommended best practice for it?

6. Please give all the supported transaction codes for DWM. What all standard transactions are NOT supported in DWM?

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Former Member
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To your questions:

1. You do not want to create accounting docs in the DWM system...You must see the DWM system purely as a stock system. All material docs and accounting entries sit on the ERP system. These are created from the BAPI's you mentioned once they are received and posted in the ERP system.

2. Yes to all. For the DWM storage location, you execute the physical inventories on the DWM system. Any diff's will post with mvnt types 711-714 back to the ERP system and create the material and accounting docs. You get tcode LX23 to compare stocks on the lowest level between DWM and ERP. You also cannot create a physical inventory on a bin where a current activity (PGR or PGI) is taking place. You can get these details from delivery monitors or open transfer orders for ST or Material or Bin, etc.

3. We went with the following business rule: Once the main ERP system is down, DWM can continue with any document which is already in the DWM system. NO new deliveries will be created from the DWM system (remember document flows, number ranges, etc...!!!). Any PGI or PGR posted from DWM will sit in the ALE monitor to be executed once the connection is back again. In our invironment (with a 24/7 factory scenario) we start the inbound from DWM (by creating a TO) and thus keep the factory going and all putaway tasks wait for the connection to be established again.

4. Believe want only 1 system to be the one where PO's / SO's are created. The deliveries of these documents exit in the DWM system. You will need the customer/vendor/material master in DWM (but only at header level for the 1st 2 mentioned). For materials you will need other views than the ERP system, for example you do not need accounting/costing vies, but you need WM views.

5. You will need to configure the sales structure (sales org/ shipping point / distr channel). No costing configuration neccessary. You will need to define the WH number and assignment in the ERP system, also the Decentralized WM Part. The you go to the DWM system and do all WM config there. If you have an already WM system in the ECC ERP system, then I would recommend that you choose a new sloc for the DWM environment. this would ease the transition process.

6. Wow...this is everything under LE....Transfer Orders are used, In/Outbound Deliveries are used, LT01 / LT10 / ....and lots more. It's difficult to list it here. See the SAP menu.

Good luck.


Former Member
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Hi Hein

Thank you very much for your detail answers. We shall look into them and if required will contact again. Really appreciate your detail answers

Thanks and Regards

Krishna Rao