How To Fix PK406 - Material for quant &1 is special stock and is ignored

SAP Error Message - Details

• Message type: E = Error

• Message class: PK - Production - KANBAN

• Message number: 406

• Message text: Material for quant &1 is special stock and is ignored

Self-Explanatory Message

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• What is the cause and solution for SAP error message PK406 - Material for quant &1 is special stock and is ignored ?

  The SAP error message PK406 indicates that the material for the specified quant is classified as special stock, and therefore, it is being ignored in the context of the operation you are trying to perform. This typically occurs in inventory management or when dealing with stock transfers, where the system expects standard stock but encounters special stock instead.
  Cause:
  
  Special Stock Classification: The material in question is categorized as special stock (e.g., consignment stock, project stock, or returnable packaging). Special stock is treated differently in SAP and is not included in standard stock calculations.
  Incorrect Stock Type: The operation you are trying to perform (like a stock transfer, inventory count, or reservation) may not support special stock types.
  Configuration Issues: There may be configuration settings in the system that do not allow for the processing of special stock in the context of the operation being performed.
  
  Solution:
  
  Check Material Type: Verify the material type and stock type of the material in question. You can do this by checking the material master data in transaction MM03.
  Review Stock Overview: Use transaction MMBE to check the stock overview for the material and confirm whether it is indeed classified as special stock.
  Adjust the Operation: If the operation you are trying to perform does not support special stock, consider adjusting your process. For example, if you are trying to perform a stock transfer, ensure that you are only selecting standard stock.
  Use Appropriate Transactions: If you need to work with special stock, ensure you are using the correct transactions that support special stock handling (e.g., using specific transactions for consignment stock).
  Consult Documentation: Review SAP documentation or help files related to special stock handling to understand the limitations and requirements for processing special stock.
  Configuration Review: If necessary, consult with your SAP configuration team to ensure that the system is set up correctly to handle special stock in the context of your business processes.
  
  Related Information:
  
  Special Stock Types: Familiarize yourself with the different types of special stock in SAP, such as consignment stock, project stock, and returnable packaging.
  Transaction Codes: Common transaction codes related to stock management include:
  
  MM03: Display Material
  MMBE: Stock Overview
  MB1A: Goods Withdrawal
  MB1B: Transfer Posting
  MB1C: Other Goods Receipts
  
  
  SAP Notes: Check SAP Notes for any known issues or updates related to the error message PK406.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.