Material reservations over-supplied with EWM

[Former Member]

Hi,

We're using material reservations to trigger movement of goods from an EWM sloc.

A reservation is created (MB21), and then a pick list (MB26) - this creates a delivery in ERP which is distributed to EWM.

This issue we have is, until the EWM delivery is processed and the message is sent back to ERP, it is possible to create further pick lists and therefore deliveries.

So its possible to over supply against a reservation.

The person managing the reservations has no way to know whether or not a reservation is currently being picked by the EWM warehouse.

Is this a gap in the reservation process?

Any hints or tips appreciated.

Regards

Guy

[rahulvsaganeau]

Hello,

Can you help me with more details aroound this

"A reservation is created (MB21), and then a pick list (MB26) - this creates a delivery in ERP which is distributed to EWM."

Thanks

[jlivio90]

Hi Guy.

Have you solved this issue?

I'm in a client asking myself how I can transfer material for a PM reservation and so far no idea better than this one. Me and my colleagues thought in a very similar solution but I didn't test yet, would be very helpful if you could confirm that this worked.

BR.

Janderson

[Former Member]

Reservations are system documents that show a requirement for a certain amount of good for production, cost center, and any other need. ...Read More: SAP EWM Certification

[JuergenPitz]

Hi,

as much as I agree with Jürgen, I simply say that there is no answer to this question. Because I do not think that working with MB21 and MB26 was ever build and intended to work with a warehouse management system, without regards to WM or EWM. It is simply not meant to be used in an EWM environment. There are enough other ways, with much more and better features, so why bother?

Brgds

Juergen

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[V_Sasidhar_Gupta_G]

Hi Juergen

Glad to know if you can share more details on best practices for SAP PM and EWM integration scenarios.

Thanks

Sasidhar Gupta

[Beyonded]

is it possible to consume from MB26 using advanced production integration?

[AD10]

Hi Together,
Sorry, if my replies are late, but as we just had and solved this issue, I thought of sharing with the group.

Yes, this is the known gap in Reservation transaction, that it doesn't checks the open deliveries, e.g. in MIGO the message M7- 467/466 only get triggers when reservation is getting deleted, but while creating deliveries reservation is not deleted until GI is posted to it, hence this check/message is not triggered.

So What we did- Implemented Logic in tcodes - MIGO & MB26 to check the open deliveries for the reservations +item (RESB-RSNUM+RSPOS). Read Open quantity of reservation, which is requirement quantity (RESB-BDMNG) - quantity withdrawn (RESB-ENMNG). System auto populate this quantity in MB26, MIGO. Compare Open quantity with sum of delivery quantities from VRSLI table. If open quantity is greater than VRSLI quantity, allow creating delivery, otherwise throw message M7-467/466 and don't allow creating any further delivery.

Hope this helps the community.

KR,

AD

[michael88]

Hello together,

now we recognize the same issue. Have someone found a good solution?

I can't find a SAP Note according such problems. The only thing what we can do is to set manually the flag RESB-KZEAR (Final issue for this reservation) in tcode MB22.

BR Michael

[former_member555178]

We have same issue ... please update if you found any solution

[JL23]

maybe you should take the chance and explain it with other words. This question was asked 9 months ago, had over a 100 views and no answers. It can be that the question is not really understood by the readers.

Bring an example which makes it visible. I can actually say that I do not understand where here a problem with over-supply is.

if I create a reservation for 100 and this is send as delivery to EWM, and I continue to do other reservations, say 50 more. Then EWM brings the first 100. Where is here an oversupply- It is less than the current reservations, but there is also not said why the reservation for 50 cannot be send to EWM like the first reservation.

[former_member555178]

Hi Jurgen,

Below is an example to explain the issue I am facing

1) Create a reservation in S4 for 100 EA for a material

2) Post Goods issue using MIGO and MB26 for 100 EA

3) System creates Outbound Delivery if the location is EWM managed and creates an EWM Delivery in the integrated EWM system

4) Now before picking and Goods issue from EWM, go to MB26 or MIGO

5) Create another Outbound Delivery against same reservation for 100 EA

6) System will allow to create multiple Outbound Deliveries from S4 side until picking and goods issue is posted from S4 EWM

7) Issue here is system is not checking if there is an existing Outbound Delivery which is due for Pick and Goods Issue

[JL23]

Why should it check for other deliveries?

[former_member555178]

Don't you think multiple Outbound Deliveries created for same reservation is an issue? Why system should create more than one Outbound Delivery for a reservation

[JL23]

Sure it is, but why do you do it to begin with?

You posted goods issue in your step 2 and 4, and for each one you get a delivery, or what do you actually do in MIGO?

[former_member555178]

In step 2 - I go to MIGO - Goods Issue - enter reservation number and post -> System creates an Outbound Delivery and gets distributed to EWM, hence this is not actually posting a Goods Issue but just an Outbound Delivery is getting created here. Actual picking and Goods issue is carried out in EWM (step 3)

Now if we go back to step 2 and repeat the steps before step 3, system creates multiple Outbound Delivery for same reservation

[AnnaJ1]

Hi, did anyone find a solution to multiple deliveries being created in EWM for the one reservation line?

Thanks

[mario_ecker]

Hi Guy

I have the same issue. Have you already solved it?

I found the BADI LE_SHP_GN_DLV_CREATE. Maybe you can develop such check in this implementation. But i still hope for a better solution.

Kind Regards,
Mario

[mario_ecker]

Hi Guy

I have the same issue. Have you already solved it?

I found the BADI LE_SHP_GN_DLV_CREATE. Maybe you can develop such check in this implementation. But i still hope for a better solution.

Kind Regards,
Mario

[mario_ecker]

Hi Guy

you´re right, we were facing the same issue.

But you can do a short implementation in SMOD MBCF0011 to take the open deliveries in consideration.

Rgds,

Mario Ecker