Creating Storage Units
The system creates homogeneous storage units automatically when the putaway takes place in a storage type that is managed for storage units. This takes place as a normal process when you create transfer orders as illustrated below.
A separate transfer order item that specifies both a source storage bin as well as a destination storage bin is created for each material to be put away. When you create transfer orders for stock putaways involving storage units, this means that:
In this case, all the transfer order items have the same destination storage bin since they are all part of the same storage unit. You can create transfer orders in WM from transfer requirements or you can create them manually.
For both options, you can
In the following explanations and examples, all putaways are carried out by transferring stock from a storage type that is not SU-managed (goods receipt area) into an SU-managed storage type.
Creating Homogeneous Storage Units
To create a transfer order for homogeneous storage units from the transfer requirement item overview screen, complete the following steps:
For the system to create storage units, you must select a destination storage type that is managed for storage units in the Palletization section. You can enter this manually or define it for automatic selection in the material master record and storage type search strategy sequence. On this screen, you can also manually enter storage unit numbers for each of the storage units. Choose Create TO in foreground. to complete the preparation screen for the transfer order in the foreground or choose Create TO in background. for background processing.
On the transfer order item screen you have the possibility to influence the creation of the transfer order item at the "lowest level". You can also enter the storage unit number on this screen.
Creating Mixed Storage Units for a TR
Mixed storage units contain two or more material items. This procedure describes how to create a mixed storage unit containing more than one item from the transfer requirement overview screen.
Change the quantities in the Selected quantity data fields to the desired quantities. Choose Create SU (single) from the application toolbar. The system displays the preparation screen for placing the mixed storage unit into the warehouse.
Depending on the settings in Customizing for Warehouse Management, you may also need to enter a destination storage type that is SU-managed. Choose Create trans.order to complete the preparation screen for the transfer order. If you did not enter them manually, the system assigns the storage bin and SU number for the storage unit. On this screen you also have the option to choose Reset transfer order. This makes it possible for you to enter a new SU number and/or destination storage bin.
The system creates a separate transfer order item for each material item in the storage unit. If an error occurs when you create a transfer order item (for example, if you attempt to store a mixed pallet in a storage area where mixed storage is not allowed), the system displays the item screen when the error occurs for the corresponding SU item.
Adding Materials to an Existing Storage Unit
Using SU management, you can add materials to existing storage units. To do this, you must know the number of the storage unit to which you want to add stock. To add materials to an existing storage unit, from the transfer requirement overview screen.
Creating Storage Units Manually
When you create transfer orders for storage units manually, the same functions are available as those for creating transfer orders based on transfer requirements. You can
For information on how to create transfer orders when SU management is not active in your system, see Creating Transfer Orders.
Creating homogeneous storage units
The system proposes both a destination storage bin and a destination storage unit. If the destination storage type is assigned to an ID point, the system creates the TO working item with the ID point storage type (see Using an ID point and Example: Putaway using an ID point).
Creating mixed storage units
You can also enter additional default information that is then valid for all items of the storage unit you are creating. Choose Preparation.
Add materials to an existing storage unit
You can also enter default information that is then used for all items of the storage unit you are extending. In addition, you must enter the movement type for the material to be added to the storage unit. Again, you have the option of entering default information that will be used later in the transaction for each item to be added.
– Items to be added
– Stock in SU
The Items to be added tab is used to enter the materials that you want to add to the SU. The Stock in SU tab lists the materials that are already in the SU. Certain values displayed on this screen (for example, the destination storage bin) cannot be changed because they pertain to the already existing storage unit.
Automatic Bin Search
In WM, you define strategies the system uses to "automatically" search for storage bins for stock placements and removals. When SU management is active, WM automatically finds storage bins in basically the same manner as in the standard system without SU management. This includes the methods used to store homogeneous storage units. However, one question must be discussed regarding mixed pallets: "How does WM search for storage bins with mixed storage units?"
Storing Mixed Pallets
Since mixed storage units contain more than one material item, the system must select one of these materials to use as a basis for the storage bin search process. The selection of this material item is purely arbitrary. The characteristics defined for the selected material are then used to carry out the automatic storage bin search function. All other material items contained in the storage unit must follow and are transferred to the storage bin selected for the material item that was chosen for the search process.
Independent of the material selected by the system for the automatic storage bin search function, the normal system checks are carried out for all materials in the storage unit (such as hazardous materials checking or mixed storage) to insure that no errors occur for stock placements.
Confirming Transfer Orders for Storage Units
When you confirm a transfer order or a transfer order item, you are verifying that the required quantity of material has actually been transferred from one location to another and that the processing of the transfer order or item has been completed. When SU management is active in your system, you have three options for confirming transfer orders. You can
Displaying the Contents of a Storage Unit
In WM, you can display storage unit (SU) numbers in all functions in which stock review screens are normally displayed. In these functions, you can display the header information for a storage unit or the stock contained in a particular storage unit.
To display storage unit information
If you choose Stock and there is only one item in the storage unit, the system displays information about the quant. If there is more than one item in the storage unit, the system displays the stock item list. From this list, choose Storage bin to display information about the storage bin. To display information about a quant, move the cursor to a line in the item list and choose Quant.
In many warehouses, certain storage types (such as high rack storage areas) require identification (ID) points. The transfer of all storage units into these storage types must be accomplished via the ID point. In WM, the ID point is a physical location in a warehouse managed for storage units where incoming goods are identified for further processing.
The transfer of stock from the goods receipt area via an ID point into a high rack storage area is illustrated in the following graphic.
For example, if you have assigned the ID point storage type 011 to storage type 010, when you attempt to store goods in storage type 010, the system will automatically send them to ID point storage type 011 first. When goods are transferred from the goods receipt area to the ID point, the system assigns dynamic coordinates to the storage bin using the quant number. This is illustrated in the following graphic:
For mixed pallets, the system arbitrarily selects one of the quant numbers from the materials in the storage unit.
An identification point can be used for the following purposes:
Using an ID Point
An identification point is defined in the WM system as a storage type. To avoid misunderstanding, definitions are provided for the following terminology:
ID Point Storage Type
The ID point storage type is a storage type that is managed for storage units. ID point storage types are not entered into the storage type search strategy configuration table.
Physical Storage Type
The physical storage type is the final destination for a storage unit during putaways. This storage type must be entered into the table for storage type searches.
Therefore, the total putaway process for a storage unit consists of two steps:
Defining an ID Point Storage Type
To define a storage type as an identification point, see Storage units → Master data → Define storage type control in the Warehouse Management IMG documentation.
Example: Putaway Using an ID Point
Once you have defined the ID storage type and the final storage type in Customizing, you can transfer storage units initially to an ID point before moving them to their final destination in the warehouse.
Specify a storage type as the ID point for another storage type in the storage type record. The following example demonstrates the transfer of a storage unit into high rack storage via an identification point. For this example, we have specified storage type 011 as the ID point for storage type 010. The following procedure describes how to manually create a transfer order for a storage unit from a transfer requirement with one item.
From the transfer requirement overview screen
Transferring a Storage Unit from the ID Point
Once a storage unit is received at the ID point, it is moved to the final destination storage bin using the transaction Move Storage Unit. This transaction can be used for several purposes, but it was designed specifically to move individual storage units from the ID point into the final storage type.
The following procedure describes how the transaction works:
We recommend that you create a new movement type that specifies the destination storage type in the warehouse to be specifically used for storage unit transfers from the ID point. Initially, you can use movement type 999 (warehouse supervision) for testing purposes. To define the movement type for internal transfers from the ID point, choose Logistics Execution → Warehouse Management → Activities → Define Transaction Parameters in Customizing for Warehouse Management, and enter the new movement type for transaction code LT09.
The system then searches for any existing open transfer orders for the storage unit. If no open transfer orders exist, the system displays the transfer order preparation screen. If an open transfer order is found, you can confirm the open items and post the transfer order to the database. After you confirm the open items, the system displays the preparation screen for the transfer order that will move the storage unit from the ID point into the final storage type.
The system then elects to transport the storage unit from the ID point to the final storage type. This is directed, among other things, by the entries you make for the destination storage type and bin when you define the movement type.
A second transfer order is now created which transfers the storage unit from the ID point to its destination .a storage bin in the final storage type. Once the transfer order is confirmed, the stock placement via an ID point is completed.
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Sap Wm Tutorial
Warehouse Management Guide
Warehouse Structure In The Warehouse Management System
Planning And Monitoring
Basic Stock Management
Hazardous Materials Management
Wm Interface To Quality Management
Stock Transfers And Replenishment
Posting Changes In Wm
Putaway And Picking Strategies
Storage Unit Management
Interfaces To External Systems
Mobile Data Entry
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