How To Fix W#420 - Control parameters for requirements planning for plant &1 not found

SAP Error Message - Details

• Message type: E = Error

• Message class: W# -

• Message number: 420

• Message text: Control parameters for requirements planning for plant &1 not found

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message W#420 - Control parameters for requirements planning for plant &1 not found ?

  The SAP error message W#420 indicates that the control parameters for requirements planning for a specific plant (denoted by &1) are not found. This typically occurs in the context of Material Requirements Planning (MRP) when the system is unable to locate the necessary configuration settings for the specified plant.
  Cause:
  
  Missing Configuration: The most common cause is that the MRP parameters for the specified plant have not been set up in the system.
  Incorrect Plant Code: The plant code provided may be incorrect or does not exist in the system.
  Data Inconsistency: There may be inconsistencies or issues in the master data related to the plant or materials.
  Authorization Issues: The user may not have the necessary authorizations to access the MRP parameters for the specified plant.
  
  Solution:
  
  
  Check MRP Configuration:
  
  Go to the transaction code SPRO to access the SAP Reference IMG.
  Navigate to Logistics > Production > Material Requirements Planning > Master Data > Define MRP Parameters.
  Ensure that the MRP parameters for the specified plant are defined correctly.
  
  
  
  Verify Plant Code:
  
  Check if the plant code used in the transaction is correct. You can do this by using transaction code OX10 to display the list of plants.
  
  
  
  Maintain MRP Data:
  
  Use transaction code MM02 to maintain the material master data for the relevant materials in the specified plant. Ensure that the MRP views are properly filled out.
  
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to view and modify MRP parameters. This can be checked with the help of your SAP security team.
  
  
  
  Run MRP:
  
  After making the necessary changes, try running the MRP again to see if the error persists.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SPRO: Access the SAP Reference IMG.
  MM02: Change Material Master.
  OX10: Maintain Plant.
  MD01: Run MRP for the plant.
  
  
  
  Documentation: Refer to SAP Help documentation for detailed information on MRP configuration and parameters.
  
  
  Support: If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting SAP Notes for any known issues related to this error message.
  
  
  By following these steps, you should be able to resolve the W#420 error and ensure that the MRP parameters for the specified plant are correctly configured.