How To Fix W_DFE020 - MRP type &2 is assigned to material requirements planning procedure &1

SAP Error Message - Details

• Message type: E = Error

• Message class: W_DFE - Messages for Function Group WDFE

• Message number: 020

• Message text: MRP type &2 is assigned to material requirements planning procedure &1

Self-Explanatory Message

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• What is the cause and solution for SAP error message W_DFE020 - MRP type &2 is assigned to material requirements planning procedure &1 ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  W_DFE020: MRP type &2 is assigned to material requirements planning procedure &1
  
  Meaning / Cause:
  This warning message indicates that the MRP type (Material Requirements Planning type) you are trying to assign or use is already linked to a specific MRP procedure in the system. In SAP, each MRP type is assigned to exactly one MRP procedure, which controls how the system plans materials.
  
  MRP type (&2): This is the MRP type you are working with.
  MRP procedure (&1): This is the MRP procedure currently assigned to that MRP type.
  
  The system is informing you that the MRP type you want to assign or modify is already assigned to a particular MRP procedure, so you cannot assign it to a different one without changing the existing assignment.
  
  When does this occur?
  
  When you try to assign an MRP type to a different MRP procedure in customizing (transaction SPRO ? Logistics ? Production ? Material Requirements Planning ? MRP Types ? Assign MRP Types to MRP Procedures).
  When creating or modifying MRP types or procedures.
  During configuration or master data maintenance if inconsistent assignments are attempted.
  
  
  Solution:
  
  
  Check current assignment:
  
  Go to transaction SPRO ? Logistics ? Production ? Material Requirements Planning ? MRP Types ? Assign MRP Types to MRP Procedures.
  Verify which MRP procedure is assigned to the MRP type in question.
  
  
  
  If you want to change the assignment:
  
  You must first remove or change the existing assignment.
  Be cautious: Changing MRP type assignments can affect planning results and should be done only if you understand the impact.
  
  
  
  If you want to create a new MRP type with a different procedure:
  
  Create a new MRP type instead of reusing an existing one.
  Assign the new MRP type to the desired MRP procedure.
  
  
  
  Check master data:
  
  Ensure that the material master data uses the correct MRP type consistent with your configuration.
  
  
  
  
  Additional Information:
  
  MRP Type: Controls how the system plans materials (e.g., PD for MRP, VB for manual reorder point planning).
  MRP Procedure: Defines the detailed planning logic and parameters used during MRP run.
  The assignment between MRP type and MRP procedure is a customizing setting and is system-wide.
  Changing this assignment affects all materials using that MRP type.
  
  
  Summary:
  
  
  
  Aspect
  Description
  
  
  
  
  Cause
  MRP type is already assigned to an MRP procedure; cannot assign it to another procedure.
  
  
  Solution
  Check and maintain the assignment in customizing; create new MRP type if needed.
  
  
  Transaction
  SPRO ? Logistics ? Production ? Material Requirements Planning ? MRP Types ? Assign MRP Types to MRP Procedures
  
  
  Impact
  Changing assignments affects planning behavior for all materials using that MRP type.
  
  
  
  
  If you need help with the exact customizing path or further assistance, feel free to ask!