How To Fix 6P711 - Requirements classes from MD64, MD65 and MD66 must be the same

SAP Error Message - Details

• Message type: E = Error

• Message class: 6P - Messages for planned independent requirements (Appl.area 60)

• Message number: 711

• Message text: Requirements classes from MD64, MD65 and MD66 must be the same

Self-Explanatory Message

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• What is the cause and solution for SAP error message 6P711 - Requirements classes from MD64, MD65 and MD66 must be the same ?

  The SAP error message 6P711 indicates that there is a mismatch in the requirements classes when trying to perform certain operations related to planning and production. This error typically arises when you are using transaction codes like MD64 (Change Planning) or MD65 (Change Planning for a specific material) and MD66 (Change Planning for a specific material and plant).
  Cause:
  The error occurs when the requirements classes for the materials involved in the planning process are not the same. Requirements classes are used in SAP to categorize different types of requirements (like sales orders, production orders, etc.) and are essential for the planning process. If you are trying to plan materials that have different requirements classes, SAP will throw this error to prevent inconsistencies in planning.
  Solution:
  To resolve this error, you need to ensure that the requirements classes for the materials you are working with are the same. Here are the steps you can take:
  
  
  Check Requirements Classes:
  
  Use transaction MM03 to display the material master data for the materials involved.
  Navigate to the MRP 2 view and check the "Requirements Class" field for each material.
  
  
  
  Align Requirements Classes:
  
  If you find that the requirements classes are different, you will need to align them. This can be done by changing the requirements class of one of the materials to match the other.
  You can change the requirements class using transaction MM02 (Change Material) and updating the MRP 2 view.
  
  
  
  Review Planning Parameters:
  
  Ensure that the planning parameters and settings for the materials are consistent. This includes checking the MRP type, lot size, and other relevant settings.
  
  
  
  Re-run the Planning Process:
  
  After making the necessary changes, re-run the planning process using the appropriate transaction (MD64, MD65, or MD66) to see if the error persists.
  
  
  
  Related Information:
  
  Requirements Class: This is a classification used in SAP to define how different types of requirements are handled in the planning process.
  Material Master: The material master contains all the information related to a material, including its planning parameters.
  MRP Views: The MRP views in the material master contain critical information for material requirements planning, including requirements classes and MRP types.
  
  If you continue to experience issues after following these steps, it may be helpful to consult with your SAP support team or refer to SAP documentation for further troubleshooting.