How To Fix VMP_MSG347 - Item cannot be added; unitized BOM supports only unitized phantom item

SAP Error Message - Details

• Message type: E = Error

• Message class: VMP_MSG - VMP Message Manager

• Message number: 347

• Message text: Item cannot be added; unitized BOM supports only unitized phantom item

Self-Explanatory Message

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• What is the cause and solution for SAP error message VMP_MSG347 - Item cannot be added; unitized BOM supports only unitized phantom item ?

  SAP Error Message:
  
  VMP_MSG347: Item cannot be added; unitized BOM supports only unitized phantom item
  
  Cause:
  This error occurs when you try to add a non-unitized item to a unitized BOM (Bill of Materials). In SAP, a unitized BOM is designed to contain only unitized phantom items. Phantom items are typically used to represent subassemblies that are not physically produced but are used for planning and costing purposes.
  
  Unitized BOM: A BOM where components are grouped into units (e.g., kits or sets).
  Unitized Phantom Item: A phantom item that is also unitized, meaning it is treated as a unit or kit within the BOM.
  
  If you attempt to add a standard (non-unitized) item or a non-phantom item to a unitized BOM, SAP will raise this error.
  
  Explanation:
  
  Unitized BOMs are structured to only allow unitized phantom items as components.
  This ensures that the BOM maintains its integrity as a kit or unitized assembly.
  Adding any other type of item violates this structure, hence the error.
  
  
  Solution:
  
  
  Check the item category of the component you are trying to add:
  
  It must be a phantom item (item category N or similar).
  It must be unitized (the unitization indicator must be set).
  
  
  
  Convert the item to a unitized phantom item if appropriate:
  
  Change the item category to a phantom item.
  Set the unitization flag for the item.
  
  
  
  If the item should not be unitized:
  
  Do not add it to a unitized BOM.
  Consider creating a separate BOM or restructuring the BOM to accommodate non-unitized items.
  
  
  
  Review BOM settings:
  
  Check the BOM usage and item categories allowed.
  Ensure that the BOM is correctly defined as unitized if you intend to use unitized phantom items.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  CS01 / CS02 / CS03 — Create / Change / Display BOM
  MM01 / MM02 — Material Master (to check/change item category or unitization)
  
  
  
  Item Categories:
  
  N — Phantom item
  L — Stock item
  U — Unitized item (may vary depending on configuration)
  
  
  
  Unitization:
  
  Unitization is a process where components are grouped into units or kits.
  Unitized BOMs are often used in industries like automotive or electronics where kits are assembled.
  
  
  
  SAP Notes / Documentation:
  
  Check SAP Help Portal for BOM and unitization concepts.
  Search for SAP Notes related to VMP_MSG347 for any patches or detailed explanations.
  
  
  
  
  Summary:
  You are trying to add an item to a unitized BOM that is not a unitized phantom item. To fix this, ensure that only unitized phantom items are added to unitized BOMs, or adjust your BOM structure accordingly.