How To Fix WZ334 - Inbound distribution already entered

SAP Error Message - Details

• Message type: E = Error

• Message class: WZ - Workflow: Model objects

• Message number: 334

• Message text: Inbound distribution already entered

Self-Explanatory Message

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• What is the cause and solution for SAP error message WZ334 - Inbound distribution already entered ?

  SAP Error Message:
  WZ334 - Inbound distribution already entered
  
  
  Cause:
  This error occurs when you try to enter or post an inbound distribution document (such as a goods receipt or inbound delivery) that has already been recorded in the system. Essentially, the system detects a duplicate inbound distribution for the same reference document or delivery, preventing double posting.
  
  Explanation:
  
  Inbound distribution documents are used in scenarios like stock transfers, subcontracting, or intercompany stock movements.
  When an inbound delivery or goods receipt is posted, SAP creates an inbound distribution document.
  If you attempt to post the same inbound distribution again (for example, by reprocessing the same delivery or document), SAP throws the WZ334 error to avoid duplication.
  
  
  
  Solution:
  
  
  Check if the inbound distribution has already been posted:
  
  Use transaction codes like MB51 (Material Document List) or VL33N (Display Inbound Delivery) to verify if the inbound delivery or goods receipt has already been processed.
  Check the material document or inbound delivery status.
  
  
  
  Avoid duplicate