How To Fix WS391 - Valuation data could not be blocked for all materials

SAP Error Message - Details

• Message type: E = Error

• Message class: WS - Supplier Billing Document

• Message number: 391

• Message text: Valuation data could not be blocked for all materials

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WS391 - Valuation data could not be blocked for all materials ?

  SAP Error Message:
  WS391 - Valuation data could not be blocked for all materials
  
  
  Cause:
  This error typically occurs during a mass valuation or material blocking process when the system attempts to block valuation data for multiple materials but fails for one or more materials. The failure can be due to:
  
  The valuation data for some materials is already blocked or locked by another user/process.
  Inconsistent or missing valuation data for certain materials.
  Authorization issues preventing the blocking of valuation data.
  The materials might be in a status or condition that does not allow blocking (e.g., materials are in use in a process that prevents blocking).
  Technical issues such as database locks or update failures.
  
  
  Explanation:
  In SAP, valuation data blocking is used to prevent changes to the valuation of materials during critical processes like inventory closing or period-end closing. When the system cannot block valuation data for all selected materials, it raises WS391 to indicate partial failure.
  
  
  Solution:
  
  
  Check Lock Entries:
  
  Use