LT12: how to manipulate the handling unit

Question

Dear all,
This is my first message on this forum and I've seen many bright lights on this forum so I have high hopes of your response to my question : )
When I want to confirm a transfer order with trx LT12, 2 Handling Units (HU) are assigned (which can be seen in the lower part of the screen). I have 2 items in my active worklist (different storage units) and can modify some fields, including the HU. For some reason both items have the same HU (the upper one of the assigned HU). I would like the first item to have the first HU and the second item to have the second HU.
My question is simple (and I had thought this would be possible but I've tried a LOT and did not succeed, hence my cry for help here): is there a possibility to manipulate the Handling Unit before it is shown on the screen? I did not seem to find a suitable BADI/user exit.
Any help would be greatly appreciated. Thanks in advance for your efforts!
With kind regards,
Roel van den Berge

Answer 1

Dear Roel van den Berge
if iam not wrong you can achieve the same by  TO split
Transfer Order Split
Use
To optimize processes in the warehouse, it often makes sense to split up putaways and stock removals into smaller packets according to certain criteria. In doing so, it is important, for example, to:
•     Distribute the workload equally amongst the warehouse workers
•     Optimize stock movements in the warehouse according to certain criteria.
The transfer order (TO) represents a work package and determines the actual workload for a putaway or stock removal. It can therefore make sense to split a single, extensive transfer order into several smaller transfer orders. During the TO split, the system creates several smaller packets from one large one.
During the TO split, the TO items are divided up between one or more TOs. A TO split does not however mean that the system divides individual items of a TO into smaller TO items.
Prerequisites
1.     You define the criteria according to which the TO split is to occur in the Customizing for Warehouse Management under Activities  Transfers  Processing Performance Data/TO Split  Define Profiles.
a.     To define a TO sort profile, choose Sort profile for TO splitting.
In the sort profile for the TO, you define the criteria according to which you want to sort the items in a transfer order before the actual split.
For each of these sort criteria, you define whether the system is to sort the transfer order items in ascending or descending order.
Before the actual dynamic TO split, you must sort the corresponding TO according to certain criteria. By sorting the TO items, you ensure that the TO split is sensibly executed and that no nonsensical TO splits occur.
b.     To define a TO split profile, choose Profile for Transfer Order Splitting.
c.     You assign your sort profile to the TO split profile by entering it in the field Sort profile.
2.     You determine when the TO split should take place in the Customizing for warehouse management under Activities  Transfers  Processing Performance Data/TO Split  Control for Performance Data Processing/Define TO Split.
You also assign a key to the TO split profile, consisting of a warehouse number, movement type, source storage type and destination storage type.
Features
Standard Sorting of TO Items
Control of the TO split occurs on the basis of the sort. The system defines the sequence of the items in the transfer order before the actual TO split via the sort, so that the sequence of the TO items corresponds to an optimal sort sequence for later processing.
Since the system always executes the forced split of the transfer order items according to the forced split criteria, the system always sorts the TO items in the standard sort in accordance with the forced split criteria in the order that the forced split criteria are processed.
Forced Split
Even if you have not set any user-defined criteria for the TO split, the system always executes a TO split according to the following forced split criteria:
•     Planned data is required
The TO split first divides the TO items for which planned data creation is required, from the TO items for which planned data creation is not required.
The TO split also causes a further division for all TO items with planned data creation, according to the source storage type and destination storage area criteria.
•     Per split profile
As soon as TO items differ from one another in the split profile to which they are assigned, a TO split occurs according to the split profile criterion.
•     Per performance data profile
As soon as TO items differ from one another in the performance data profile to which they are assigned, a TO split occurs according to the performance data profile criterion.
•     Per staging area
The TO split divides the TO items according to the staging zone to which they are assigned.
•     According to mixed pallets
The TO split then separates the TO items containing mixed pallets from those containing no mixed pallets.
The TO split also creates a further division of all TO items with mixed pallets according to the storage unit that is to be moved.
•     According to queue
The TO split divides the TO items according to the queue that these TO items are assigned to.
If you work with queues, you can assign each work area to its own printer. That way, all materials that are to be processed in a specific area can be combined in one list and printed on the assigned printer.
•     According to handling unit items
The TO split then separates the TO items containing handling units from those containing no handling units.
•     Separate confirmation of the withdrawal step and the transfer step is necessary
The TO split divides the TO items with split confirmation from TO items for which split confirmation is not planned.
The system transfers the information on the forced split to the header via the transfer orders, which are created as a result of the TO split.
The forced split criteria are obligatory. You cannot influence the forced split via the user exit. The system does not adopt any changes to the forced split criteria.
Dynamic Sorting
Before you can execute a dynamic TO split controlled via the Customizing settings, the TO items should be sorted according to the split criteria. In doing so, you ensure that the TO split is sensibly executed and that no nonsensical TO splits occur.
You can define the sequence of all the storage bins in the warehouse based on a specific sequence and sort the TO items according to this sequence. The system sorts according to the Sequence indicator in the warehouse master data.
Dynamic Split
You can define several criteria for the TO split in the Customizing for Warehouse Management.
•     Split according to movement unit
On the basis of this split criterion, you create a new TO for each movement unit. In doing so, you create TOs with one item for exactly one movement unit.
You use this split, for example, during goods receipt when a whole pallet is moved from the GR area into the warehouse.
You define the split according to movement unit in the Customizing for Warehouse Management under Activities  Transfers  Processing Performance Data/TO Split  Define Profiles  Profile for performance data with the indicator Split single TO.
•     Split according to picking area
You divide up the items to be picked according to the areas of responsibility of the picker.
•     Split according to target times in the TO
You determine, for example, how long the picking for a transfer order is allowed to take.
•     Split according to scope (weight or volume)
You determine the total weight or volume that a transfer order can cover for putaway or stock removal.
Note that the volume is calculated based on the alternative unit of measure. A box with 10 bottles, for example, can have a different volume than 10 times the volume of one bottle. If the volume for the alternative unit of measure has not been defined in the material master record, the system uses the volume from the base unit of measure for its calculation.
Activities
Note that you have no influence over the TO split according to forced split criteria.
You can, however, define your own criteria for a dynamic TO split via user exit MWMTO012. For more information, see the system documentation on this user exit