Understanding SAP Handling Unit Management.
SAP Handling Unit Management is a concept developed by SAP, which was earlier known as the shipping unit.
A Handling unit is an identification for a material in packing based logistics. A handling unit is defined as a physical unit that consists the combination of packaging material and material. Some common handling units are packaging materials like cartons, pallets etc.
In the SAP system, the handling unit (HU) expands on the shipping unit. Handling units can be nested and you can also create new handling units from several handling units as often as you like. At the material item level, HUs contain the complete material identification, the quantity, and, in the case of serial numbers, the respective object list. Handling units have unique, scannable identification numbers that can be developed according to standards such as EAN 128 or SSCC. Handling units contain all inventory management information of the materials they contain that are maintained in Inventory Management. There are also status messages that you can call up at any time that indicate whether a handling unit is only planned or if the ship-to party has been notified of the arrival of this handling unit, or whether it is in the warehouse or has already been posted to goods issue. The integrated history function also records each business process in the life cycle of each handling unit, meaning that you can track the handling unit’s path and development at any time. Refer to : Logistics -> Central Functions -> Handling Unit Management.
Goods movement with SAP Handling Unit Management.
With SAP Handling unit management, in the HU-managed storage locations, all goods movements are executed through the specification of the respective HUs, and Inventory Management is performed through the handling units. If you are working without HU-managed storage locations, you can work with handling units (without stock information) as before in the delivery and in the shipment. In HU-managed storage locations, materials can be managed in HUs only. Mixed stock made up of packed and non-packed materials within the same storage location are not supported. HUs can also be managed in interim storage types. Unpacking a material from a HU means that the stock of the material is posted to a storage location that is not HU-managed. If you call up normal material movements in connection with an HU-managed storage location, a delivery is created, rather than a direct material posting, which has been the procedure up to now. Please note that if you want to use 311 to move the material already in stock, but in a non HUM Storage Location and you want to transfer those materials into a HUM Storage Location 304. If this is the case you can use the transaction VLMOVE with the destination plant and storage location. Before that you have to create the HU with the transaction code HU02 Storage location: where the material is and the status: in stock. Handling units are unique at client level in at least one system.
SAP Handling Unit Management configuration tips.
If you are going with SAP Handling Unit management, using an indicator at client level, you can control whether you are going to work with the HU functions. Since the handling unit is a physical unit, the central logistics processes are controlled through the input of the handling unit identification. These processes include put away, picking, and stock transfers, as well as goods receipts and goods issues. A handling unit’s mobility can be limited if quality checks are active. Changes in the stock category caused by a quality inspection are made using a posting change in the handling unit. There is also a report available that you can use to find and display handling units using different selection criteria such as material, packing instruction, or storage location. Although the handling unit is basically a unit that remains constant in the system, you can change it by repacking the materials it contains. All the packing functions, such as packing, repacking, and unpacking, are completely supported by the handling unit functionality. In this way, handling units can be created in production, during goods receipt, or in the packing areas of the warehouse. If you have automatic packing, the handling unit is created from the packaging proposals defined in the system (from the packing instructions, for example).
Material movements with SAP Handling Units
To create Packing instruction – POP1
Packing inst. determination record – POF1
Create HU – HU02 ,HUPAST, VL02N
Goods movement with SAP Handling Units
COWBHUWA – Goods Issue for Work Order
COWBHUWE – Goods Receipt for Work Order
MFHU – Goods Receipt for Repetitive Manufacturing
VLMOVE – Posting General Goods Movements (with HU)
Also with HUMO we can do some updates to Handling units
SSCC-Serial shipping container code
SAP WM offers the functionality of having Handling units with unique, scannable identification numbers that can be formed according to standards such as EAN 128 or SSCC .
Note: EAN 128 is a barcode standard which is based on code 128 symbology .SSCC is The serial shipping container code (SSCC) is an 18-digit number used to identify logistics units. The SSCC code is printed as per EAN 128 standards.
This has immense implication in the supply chain within which an organisation operates. As the SSCC for any shipment is unique universally it can be used by vendors and customers to track the history of the material , do goods receipts of the shipments by simple scanning the sscc bar code on the packed item. Such is the implication of using SSCC barcodes that some of the organisations like walmart and woolworth have a mandate that all the vendors supplying them items should supply them goods with SSCC barcodes thus aiding quick inbound of the shipments in their distribution centres.
The Handling unit in SAP is unique at the client level. What makes it unique is the logic of generating the SSCC number. The check digit is determined based on a logic which makes it .
SSCC 18 Barcode Check Digit Calculation
You have 17 digit number .Put the number in 17 cells of an excel sheet. To calculate the 18th digit which is the check proceed as follow-
From the right to left, assign the odd/even position to each digit N1 ,N2,N3..N17 .
Start with odd position. N1,N3,N5..N17
Sum all digits in odd position and multiply the result by 3.
Sum all digits in even position. N2,N4,N6..N16
Get the total for the two steps above and divide the result by 10. The check digit is the number which adds the remainder to 10.