How To Fix VHU01087 - Only one HU prototype can be created in the upper packing level

SAP Error Message - Details

• Message type: E = Error

• Message class: VHU01 - Message ID for Master Data Maintenance Packing Objects

• Message number: 087

• Message text: Only one HU prototype can be created in the upper packing level

Self-Explanatory Message

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• What is the cause and solution for SAP error message VHU01087 - Only one HU prototype can be created in the upper packing level ?

  SAP Error Message:
  
  VHU01087 - "Only one HU prototype can be created in the upper packing level"
  
  Cause:
  This error occurs during handling unit (HU) creation or packing processes in SAP when the system detects that more than one HU prototype is being created or assigned at the same upper packing level. In SAP's packing structure, each upper packing level (e.g., a pallet or carton) can only have one HU prototype assigned to it. Attempting to create multiple HU prototypes at the same upper packing level violates this rule, triggering the error.
  In other words:  
  
  The system expects a single HU prototype per upper packing level.  
  Multiple HU prototypes are being created or assigned at the same level, which is not allowed.
  
  
  When does it typically occur?
  
  During packing or repacking processes in Warehouse Management (WM) or Extended Warehouse Management (EWM).  
  When creating handling units in Sales and Distribution (SD) or Logistics Execution (LE) modules.  
  When using packing instructions or packing proposals that incorrectly define multiple HU prototypes for the same upper packing level.
  
  
  Solution:
  
  
  Check Packing Instructions / Prototypes:
  
  Review the packing instructions or packing proposals to ensure that only one HU prototype is assigned per upper packing level. Adjust the packing instructions to avoid multiple prototypes at the same level.
  
  
  Adjust Packing Strategy:
  
  Modify the packing strategy or packing profile to ensure that the system creates only one HU prototype per upper packing level.
  
  
  Review Customizing Settings:  
  
  Go to the relevant customizing for handling unit management and packing instructions (e.g., SPRO ? Logistics Execution ? Handling Unit Management ? Packing ? Define Packing Instructions).  
  Verify that the packing instructions do not define multiple HU prototypes for the same upper packing level.
  
  
  
  Check User Exits or Enhancements:
  
  If custom code or user exits are involved in HU creation, verify that they do not cause multiple HU prototypes to be created at the same upper packing level.
  
  
  Manual Correction:
  
  If the error occurs during manual packing, ensure that the user creates only one HU prototype per upper packing level.
  
  
  
  Related Information:
  
  
  Handling Unit (HU) Concept:
  
  SAP uses handling units to represent packed goods. Each HU can be nested within another HU, forming a packing hierarchy. The upper packing level is the HU that contains other HUs or items.
  
  
  HU Prototype:
  
  A HU prototype is a template or predefined structure used to create handling units automatically.
  
  
  Transaction Codes:  
  
  HU02 - Change Handling Unit  
  HU03 - Display Handling Unit  
  VL02N - Change Outbound Delivery (packing)  
  LT03 - Create Transfer Order (WM packing)  
  
  
  
  SAP Notes:
  
  Check SAP Notes related to handling unit packing errors for any patches or updates.
  
  
  
  Summary:
  
  Cause: Multiple HU prototypes created at the same upper packing level, which is not allowed.  
  Solution: Ensure only one HU prototype per upper packing level by adjusting packing instructions, packing strategies, or custom code.  
  Check: Packing instructions, customizing, user exits, and manual packing procedures.
  
  
  If you provide more context (e.g., module, transaction, process step), I can help with more specific guidance.