WM Replenishment and 2-step picking with storage units.

Dear Colleagues,
I am attempting to use SAP standard fixed bin replenishment and implement it as a 2-step picking process. Generally, the process goes as follows:
- Generate replenishment pick tasks
- Place the picked products onto storage units in an intermediate storage type
- Put the products away from storage units into the respective fixed bins
I have setup the necessary parameters to get standard replenishment to work. I can run LP21 and generate all TR's, and subsequently TO's. The product moves from respective reserve bins into the fixed bins based on strategies that I have setup.
The issue i am experiencing is when I try to introduce the intermediate storage type to place the product into, before it goes into the fixed bins. Additionally, the intermediate storage type needs to have SUM enabled, so that the product gets placed onto pallets. This way, the warehouse personnel will be able to track the physical product movements before it is put away.
Any help in this matter would be greatly appreciated.
Best Regards,
HK
Edited by: Husein Kadribegic on Aug 4, 2009 6:49 PM

Hi,
I'm not sure your scenario is viable in (standard) SAP.
As I understand (e.g.):
- source storage type: productA 10 pc, productB 20 pcs, productC 30 pc
- intermediate storage type: SU1 (productA 2 pc, productB 17 pcs, productC 10 pc), SU2 (productA 8 pc, productB 3 pcs, productC 20 pc)
- destination storage type: bin1: productA 2 pc, productB 17 pcs, productC 10 pc, bin2: productA 8 pc, productB 3 pcs, productC 20 pc
Please notice that SAP determines the to be removed quantities (~corresponding to SU1 & SU2 but not as SUs) when you remove the goods from the intermediate storage type ("allocation") and not when you place the goods into it.
Please also notice that automatically you cannot create storage units (palletize) with different products on it (I'm not sure this is requirement in your case or not).
Please check this link where it is explained where to carry out customizing for 2-step picking and how it works:
http://help.sap.com/erp2005_ehp_04/helpdata/EN/c6/f842674afa11d182b90000e829fbfe/frameset.htm
Regards,
Csaba
Edited by: Csaba Szommer on Aug 6, 2009 7:01 AM

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2-step picking vs storage unit

Dear All,
We'd like to use '2-step picking' for production supply and we use 'storage units' (pallets) in our WH.
There might be different sorts of goods (with different part numbers) on one pallet.
The problem is, that during '2-step picking' the system wants to deliver the whole storage unit from the storage bin to the interim storage bin.
Is it possible to 'break' the SU and pick only the necessary item (and necessary qty)?
(e.g.
There are materialA, materialB, materialC on palletA. I need only materialB for production, but the system wants to move the whole pallet with materialA&B&C.)
Thanks for your help.
BR
Csaba

Hi,
I'm not sure your scenario is viable in (standard) SAP.
As I understand (e.g.):
- source storage type: productA 10 pc, productB 20 pcs, productC 30 pc
- intermediate storage type: SU1 (productA 2 pc, productB 17 pcs, productC 10 pc), SU2 (productA 8 pc, productB 3 pcs, productC 20 pc)
- destination storage type: bin1: productA 2 pc, productB 17 pcs, productC 10 pc, bin2: productA 8 pc, productB 3 pcs, productC 20 pc
Please notice that SAP determines the to be removed quantities (~corresponding to SU1 & SU2 but not as SUs) when you remove the goods from the intermediate storage type ("allocation") and not when you place the goods into it.
Please also notice that automatically you cannot create storage units (palletize) with different products on it (I'm not sure this is requirement in your case or not).
Please check this link where it is explained where to carry out customizing for 2-step picking and how it works:
http://help.sap.com/erp2005_ehp_04/helpdata/EN/c6/f842674afa11d182b90000e829fbfe/frameset.htm
Regards,
Csaba
Edited by: Csaba Szommer on Aug 6, 2009 7:01 AM

Warehouse RF and 2 step picking

Hi Guys,
I have set up wm mobile in ecc 6.0 and also have 2 step TO's working manually but can't get them to work with a scanner.
I have one storage type one side of the road and one the other but they all form part of the same warehouse in SAP. They move items between them using mvmt type 919 (replenishment) and i want them to pick in one store and confirm in the other by a different person
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Hi,
I'm not sure your scenario is viable in (standard) SAP.
As I understand (e.g.):
- source storage type: productA 10 pc, productB 20 pcs, productC 30 pc
- intermediate storage type: SU1 (productA 2 pc, productB 17 pcs, productC 10 pc), SU2 (productA 8 pc, productB 3 pcs, productC 20 pc)
- destination storage type: bin1: productA 2 pc, productB 17 pcs, productC 10 pc, bin2: productA 8 pc, productB 3 pcs, productC 20 pc
Please notice that SAP determines the to be removed quantities (~corresponding to SU1 & SU2 but not as SUs) when you remove the goods from the intermediate storage type ("allocation") and not when you place the goods into it.
Please also notice that automatically you cannot create storage units (palletize) with different products on it (I'm not sure this is requirement in your case or not).
Please check this link where it is explained where to carry out customizing for 2-step picking and how it works:
http://help.sap.com/erp2005_ehp_04/helpdata/EN/c6/f842674afa11d182b90000e829fbfe/frameset.htm
Regards,
Csaba
Edited by: Csaba Szommer on Aug 6, 2009 7:01 AM

Pick Full Storage Units

Hi Guys
I have two St types 003 and 005
003 is where we have the picking and 005 is the reserve st type
I have stock in both and in 005 they are in boxes of 20
I am using two step picking in AFS
I require 150 units for one material and 200 for another
I have st type indicator 005 and search strategy 005 mvt type reference 850 and st types 003 005
003 has removal strategy M and 005 has F (as in the help in the IMG)
The material master has the control qty of 20
When I create my group and subsequently my TO's it picks the first 180 and then clears out 003 which has 19 and then picks 1 from 005 to complete the pick whe there is enough stock in 005 to pick the whole 200 which is what i want it to do
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I need help in the function module "L_TO_CREATE_TR". using in Warehouse Management(WM) module.
In theis function module I am passing LETYP(Storage Unit Type) value in IT_TRITE parameter, but this is not considering my value instead of this it is considering the value which is coming based on Source Storage type.
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Hello Experts
We would like to implement 2 Step Picking for our replenishment process. I have looked at the posts in this forum and have found some answers but I still do not have the whole story.
Our scenario is this. Within a specific storage type BKP we have some materials that we want to replenish in a single step from a secondary storage type BSC. These would be bulky items that we would take from high storage using a forklift and move directly to primary storage. We also have smaller items where it would make more sense to first pick and place in an interim storage area and then in a second step put them away in the primary storage area.
I have enabled 2 step picking and created 2 movement types 850 and 851. 850 moves items from a dynamically assigned source bin in the interim storage type (200) to the primary storage area BKP. I have configured the replenishment to use this movement type. The second movement type moves items from secondary BSC to the interim storage area 200 and is used to create the requirement for step 1 of the pick. I turned on 2 Step picking for the warehouse and configured it to use 851 for the removal phase of the pick. I also checked the box to make the 2 Step process material dependent. In the material master warehouse management view I selected option 2 in the step-picking field for those items which are to be relevant for 2 Step picking.
My execution process is as follows :
1) I run LP21 to create the replenishment requirements.
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3) I run LT0E to create the picks for those items which are relevant for 2 Step picking. The process correctly prompts me to to create TOs for the 2 Step items and I am able to create the TOs to move product from BSC(Secondary Storage) to 200(Interim Storage)
4) I confirm the TOs.
5) I run LT42 to create the TOs to put all the items whether 1 Step or 2 Step into Primary storage.
Here's where I hit a problem. The 2 Step items are fine. The TOs are successfully created to move items from the Interim Storage area to BKP (the primary location) But now SAP also tries to use the Interim Storage area as the source for the 1 Step picks instead of getting them from their original location in BSC.
I cannot see how to get SAP to use a different movement type for the one step picks than the 2 step picks ?
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Hi
I hope the below clarification would make you understand the scenario in a simple way.
In Inventory Management (MM) whatever you do, it will have its effect in WM.
This is done thru movement type. Every movement type of MM is linked with WM.
In inventory management the movement type is used to determine the G/L account and has some other functionalities. Likewise in WM the movement type is used to identify the Source and Destination storage types.
When you make GR in IM, it creates the accounting document in MM and subsequently triggers a TR (Transfer requirement) in WM. If you make a transfer posting(material to material) in IM, then the TR generated in WM is called as Posting Change Notice.
The replenishment will happen when you maintain the maximum and minimum level and the replenishment qty details in Material Master.It is nothing but it will trigger a TR specifying the a destination bin where the material level has gone low.
Each IM movement type is linked with WM movement type with the help of Reference movement type..
Hope this clarifies your doubt.
Reward if useful.
Regards
edwin

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Guys from OSS told me that this is not feasible, since it may expose system to SU duplication. Even if I don't understand this constraint (I am picking for production replenishment, i.e. moving toward a not SU managed Storage Type, so this risk is not my case), I can accept this sentence.
Since customer is asking for this function, I've tried, as interim solution, to activate Zero Stock Check as Inventory Method, but it does not work too.
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Hi,Sap: IN :
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Storage unit types and storage bin types - Need

Hi,
i want to know what is the use of the storage unit type and storage bin type.
thanks,
Maxx

Dear Maxx,
http://help.sap.com/saphelp_erp2005vp/helpdata/en/c6/f844694afa11d182b90000e829fbfe/frameset.htm
Storage Bin:
A storage type generally contains several storage spaces or slots. These are called storage bins in Warehouse Management (WM). The storage bin is the smallest available unit of space in a warehouse. The storage bin therefore describes the position in the warehouse where the goods are or can be stored.
Since the address of a storage bin is frequently derived from a coordinate system, a storage bin is often referred to as a coordinate. The coordinate 01-02-03 for example, can refer to a storage bin in row 1, stack 2, and level 3.
You assign each storage bin to a specific warehouse number and storage type according to its location. You must also assign each storage bin to a storage section.
You can also define the following additional characteristics of a storage bin:
Maximum weight
Total capacity
Fire containment section
Storage bin type (for example, for small or large pallets)
With certain stock placement strategies, the storage bin type plays a significant role in optimizing the automatic search for a storage bin in connection with the pallet type. For example, you can define the WM putaway strategy to place large industrial pallets into a specific large bin type and smaller pallets into small bins.
Storage Unit:
In the system, a storage unit record consists of a header and at least one material data record (quant data record).
The header contains information which is relevant for the entire storage unit and includes the:
Storage unit number
Storage unit type (SUT) of the storage unit
Storage bin in which the storage unit is currently located
Status, which provides current information about the storage unit
Specific information about the stock contained in a storage unit is found in the material data record. The material record is already familiar to you in the existing system as a quant data record. For SU management, this information can be managed at the storage unit level.
The following graphics illustrate how WM handles storage bins with and without the use of storage unit management. For these examples, storage bins are displayed in which 200 boxes of red pencils and 50 boxes of blue pencils are stored. The stock is distributed on two pallets.
Hope this will help.
Regards,
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Difference between Storage Unit type and storage type

Hi,
I am confused with storage unit type and storage type.
Can anyone help me with real case examples.
I would like to know about Storage unit types and their uses in WM.

Hello!
Storage type is a storage area and Storage Unit Type is strategies are used in the warehouse process for creating transfer orders.
A storage type is a storage area, warehouse facility, or a warehouse zone that you define in Warehouse Management (WM) for a warehouse number. This is a physical or logical subdivision of a warehouse complex that is characterized by its warehouse technique, the space used, its organizational form, or its function. A storage type generally contains several storage spaces or slots. These are called storage bins in Warehouse Management (WM).
See also:
https://wiki.sdn.sap.com/wiki/display/ERPSCM/WMOrganisationalStructure
http://help.sap.com/saphelp_470/helpdata/en/c6/f838f94afa11d182b90000e829fbfe/content.htm
Storage Unit Type is putaway strategy, the system processes different storage unit types (for example, pallets) and allocates them to the appropriate section. Often, one storage bin is divided into several smaller sections. Typically, only the same storage unit types can be placed into a storage bin at one time.
See also:
http://wiki.sdn.sap.com/wiki/display/ERPSCM/PutawayandRemovalStrategiesin+WM
http://help.sap.com/saphelp_470/helpdata/en/c6/f844c44afa11d182b90000e829fbfe/content.htm
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Storage Unit stays after L_TO_CREATE_DN

Hi,
I use L_TO_CREATE_DN to pick SUs (Storage Unit) and post goods movements. I give the parameter "KOMIM = 2".
The WM Stock (LQUA table) lines disappear as expected, but the SU header data (LEIN table) stays without any change. It causes many problems.
Any ideas ?
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Hi.
By using L_TO_CREATE_DN, you are creating and confirming TO?
When you create a TO you should get your SU assigned to it (if your storage type is not bulk or open storage etc.)... I gues that works for you since you have automated the process... So after confirming the TO, this SU should disappear (check in LS33 for your SU if it exists), but it doesn't necessarily have to disappear - e.g. if your SU has 100 cs and you picked 50 cs from it. It should still exist with qty of 50 cs.
Instead of looking at table LEIN, check if your SU is showing in LS33.
Regards,
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When to introduce Storage Unit into a warehouse business

Hi all,
I am new in storage unit and I did read up a couple website about the storage unit and know how it work.
However, I am wondering if you can share your experience with regards to following questions.
In what kind of warehouse operation setting best suit to use SAP storage unit functionality? Does the warehouse business process require to meet some basic pre-requisites before a storage unit process of SAP is consider feasible and not overkill or will provide value added to the whole warehouse operation?
Is there any concern or remification of introducing SAP SU into a warehouse operation (both from system and business perspective). In another word, impact to other module as a result of SU.
Looking forward to your feedback.
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Daniel

Hello Daniel, there are a number of reasons and scenarios for introduction of storage units.
I assume you want to use / are using - RF devices for WM...
From the aspect of warehouse operations if your products don't have printed material bar codes, then you would need to print them at some point in order to be able to scan your materials during transfer order confirmation. When you have batch management too, in bulk storage types everything gets more complicated since if you don't have storage unit management, and have batch managed materials, you also need to scan batch number in addition to scanning your material bar code. Ok, now you need to have that batch number bar-coded too. This gets a bit tricky, scanning two bar codes, printing 2 bar codes... Then why not introduce storage unit management and kill a couple of flies with one hit?
What storage unit does, is keep all the info stored in itself.
SU keeps track of material inside it, batch number, etc. So when you are picking from bulk storage type, by simply scanning SU you want to pick, you are actually specifying all the info from that SU, like material, batch, etc.
Someone will argue that material bar-code isn't mandatory to be scanned and yes it can be switched off, but it leaves you with a lot of room for mistakes, so if you don't have SU management, you need to scan the material + batch.
Also, it is easier to perform physical inventory with RF and storage unit managed warehouse. If you are having batch management that is.
From business point of view first we can think of traceability (not in the meaning of standard batch traceability) => like having the information of which exact pallet went to which customer.
When you scan storage unit for picking to customer 1234, you will have the information where did the exact pallet go, if you need that kind of info.
You can also have some sort of functionality like that without SU management, because you can actually store more information in one bar code, like scanning once and having all the info in one long number (by parsing the number you can assign that info to the appropriate fields in RF transactions).
And that's one good approach too if you don't want storage unit management but want to scan only once, but this requires some modifications to RF programs to be able to parse the scanned data into multiple data fields. Storage unit does something like that with just a bit of customizing.
Actually there are a lot of good things SU introduces in your warehouse, but sometimes it is overkill indeed, if you don't really need it then don't implement it, sometimes things are good to be kept simple, although I seem to thing about SU management to be the simplest way of operating WH.
If you need any further clarification or question about SU, feel free...
Regards,
Mihailo

WM- Printing Storage Unit

Hi everyone,
I have a problem while printing Storage Unit from another :
The material is entered in the warehouse number as Pallet in a storage type.
This step generates a Storage Unit number.
From this Pallet and this Storage Type, I place the material in another storage type (box) with another Storage Unit (box).
The movement i'm using is a copy of the 501, and the system does generate another Storage Unit Number for each box from the Pallet.
The only problem is that it does not print the Storage Unit Forms as it does for the first storage units.
The customizing is the same for the movement and the printing parameters, and I don't understand why it does not work.
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In order print the labels, you need to have a label program. You can even use the standard SAP label program. This you may have to work with a developer. If you have your label printing program is set, then you can assign the label print form according to your need. You can either setup the label form based on the Source/Dest. storage type or based on the movement type or for the entire warehouse.
This can be setup to print automatically when the TO is generated.
Hope this clarifies your question. Please let me know if you need any specifics.
Thanks.
with regards,
Muthu Ganapathy.

WM Replenishment and 2-step picking with storage units.

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