How To Fix WU634 - The required quantity is 0 for material &, plant &

SAP Error Message - Details

• Message type: E = Error

• Message class: WU - Promotion management messages

• Message number: 634

• Message text: The required quantity is 0 for material &, plant &

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WU634 - The required quantity is 0 for material &, plant & ?

  The SAP error message WU634 indicates that the required quantity for a specific material in a particular plant is zero. This error typically occurs in the context of production planning, material requirements planning (MRP), or inventory management when trying to create or process a document (like a production order, purchase order, or sales order) that involves the specified material.
  Cause:
  
  
  Zero Requirement: The most straightforward cause is that the system has calculated that there is no requirement for the material in the specified plant. This could be due to:
  
  No demand for the material (e.g., no sales orders or production orders).
  The material is not included in the planning run.
  The material has been marked for deletion or is inactive.
  The planning parameters (like lot size or safety stock) are set in such a way that they result in a zero requirement.
  
  
  
  Incorrect Master Data: Issues with the material master data, such as incorrect settings in the MRP views, can also lead to this error.
  
  
  Planning Run Issues: If the MRP run has not been executed or has not been executed correctly, it may not have updated the requirements for the material.
  
  
  Solution:
  
  
  Check Demand: Verify if there are any existing sales orders, production orders, or other demand sources for the material in the specified plant. If there is no demand, the requirement will naturally be zero.
  
  
  Review MRP Settings: Ensure that the material is included in the MRP run. Check the MRP type and planning parameters in the material master to ensure they are set correctly.
  
  
  Execute MRP Run: If the MRP run has not been executed recently, run it to update the requirements for the material. This can be done using transaction code MD01 (for total planning) or MD02 (for single-item planning).
  
  
  Check Material Master Data: Review the material master data for the material in question. Ensure that the MRP views are correctly maintained and that the material is not marked for deletion.
  
  
  Check for Deletion Flags: Ensure that the material is not flagged for deletion in the system, which would prevent it from being processed.
  
  
  Consult Documentation: If the issue persists, consult SAP documentation or your organization's SAP support team for further troubleshooting.
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  MD01: Total Planning
  MD02: Single-Item Planning
  MM03: Display Material
  CO01: Create Production Order
  ME21N: Create Purchase Order
  
  
  
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to this error message.
  
  
  User Exits and BAdIs: If custom logic is implemented in your SAP system, check if there are any user exits or BAdIs that might affect the requirement calculation.
  
  
  By following these steps, you should be able to identify the cause of the WU634 error and implement a solution to resolve it.