How To Fix PMRP090 - Change to reference top-level demand has been redone

SAP Error Message - Details

• Message type: E = Error

• Message class: PMRP - Messages for pMRP

• Message number: 090

• Message text: Change to reference top-level demand has been redone

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message PMRP090 - Change to reference top-level demand has been redone ?

  The SAP error message PMRP090 ("Change to reference top-level demand has been redone") typically occurs in the context of Production Planning and Material Requirements Planning (MRP) when there are changes made to the demand or supply elements in the system. This message indicates that a change to a top-level demand (such as a sales order or forecast) has been overridden or redone by the system, which can happen during MRP runs or when demand is adjusted.
  Cause:
  
  MRP Run: The error often arises during an MRP run when the system recalculates requirements based on the latest data. If there are conflicting changes made to the demand, the system may revert to the original demand.
  Manual Changes: If a user manually changes a demand or supply element that is linked to a top-level demand, and then an MRP run occurs, the system may revert the manual changes to maintain data integrity.
  Data Consistency Issues: There may be inconsistencies in the data, such as changes in the BOM (Bill of Materials) or routing that affect the demand.
  
  Solution:
  
  Review MRP Settings: Check the MRP settings and ensure that they are configured correctly. Make sure that the planning parameters are set appropriately for your requirements.
  Check Demand Changes: Review any recent changes made to the demand elements (sales orders, forecasts, etc.) and ensure that they are valid and necessary.
  Run MRP Again: After making necessary adjustments, run the MRP again to see if the error persists. Sometimes, simply re-running the MRP can resolve temporary inconsistencies.
  Analyze MRP Logs: Check the MRP logs for more detailed information about what changes were made and why the system reverted them. This can provide insights into the root cause of the issue.
  Consult Documentation: Refer to SAP documentation or notes related to MRP and demand management for any specific guidance or known issues related to this error message.
  User Training: Ensure that users involved in demand planning and MRP processes are trained on the implications of making changes to demand and how it interacts with the MRP process.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MD01 (MRP Run), MD04 (Stock/Requirements List), and MD05 (Individual Display of MRP List) to analyze the situation further.
  SAP Notes: Check SAP Notes for any updates or patches that may address this specific error message or related issues.
  Support: If the issue persists and cannot be resolved through the above steps, consider reaching out to SAP support for assistance.
  
  By following these steps, you should be able to identify the cause of the PMRP090 error and implement a solution to resolve it.