How To Fix VHUMI159 - Reservation item &1: special stock indicator &2 invalid

SAP Error Message - Details

• Message type: E = Error

• Message class: VHUMI - Messages for material identification

• Message number: 159

• Message text: Reservation item &1: special stock indicator &2 invalid

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message VHUMI159 - Reservation item &1: special stock indicator &2 invalid ?

  The SAP error message VHUMI159 indicates that there is an issue with a reservation item in relation to a special stock indicator. This error typically arises when the system encounters a reservation item that has a special stock indicator that is not valid for the context in which it is being used.
  Cause:
  
  Invalid Special Stock Indicator: The special stock indicator specified in the reservation item does not match the expected values for the material or the stock type.
  Configuration Issues: The special stock indicator may not be properly configured in the system, or it may not be allowed for the specific material or movement type.
  Data Entry Errors: There may be a mistake in the data entry when creating the reservation, leading to an invalid combination of stock indicators.
  
  Solution:
  
  Check the Special Stock Indicator: Verify the special stock indicator used in the reservation. Ensure that it is valid for the material and the type of stock you are working with.
  Review Configuration: Check the configuration settings for special stock indicators in the SAP system. Ensure that the indicator is correctly defined and allowed for the relevant materials and movement types.
  Correct the Reservation: If the reservation was created with an incorrect special stock indicator, you may need to delete or modify the reservation to use a valid indicator.
  Consult Documentation: Refer to SAP documentation or help resources to understand the valid special stock indicators for your specific scenario.
  Contact Support: If the issue persists, consider reaching out to your SAP support team or consulting with an SAP expert to investigate further.
  
  Related Information:
  
  Special Stock Indicators: These are used in SAP to manage stock that is not part of the regular inventory, such as consignment stock, project stock, or stock in transit.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MB21 (Create Reservation) and MB22 (Change Reservation) to manage reservations effectively.
  Material Master Data: Ensure that the material master data is correctly maintained, including the settings for special stock indicators.
  
  By addressing the above points, you should be able to resolve the VHUMI159 error and ensure that your reservations are processed correctly in SAP.