How To Fix MPN01055 - Definition of MPN-MRP set for FFF &1 changed at runtime

SAP Error Message - Details

• Message type: E = Error

• Message class: MPN01 - MPN Message: Material Master / customizing

• Message number: 055

• Message text: Definition of MPN-MRP set for FFF &1 changed at runtime

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MPN01055 - Definition of MPN-MRP set for FFF &1 changed at runtime ?

  The SAP error message MPN01055 indicates that the definition of the MPN (Multi-Project Network) MRP (Material Requirements Planning) set for a specific material has been changed at runtime. This typically occurs in the context of MRP planning when there are inconsistencies or changes in the configuration of the MPN settings.
  Cause:
  
  Runtime Changes: The MPN-MRP set may have been modified during the execution of an MRP run, which can lead to inconsistencies in the planning data.
  Configuration Issues: There may be issues with the configuration of the MPN settings in the system, such as incorrect or incomplete data.
  Data Consistency: The system may have detected that the data being used for planning has changed since the MRP run started, leading to this error.
  
  Solution:
  
  Check MPN Configuration: Review the MPN configuration settings in the system to ensure that they are correctly defined and consistent. This includes checking the MPN-MRP set definitions and ensuring that they match the expected parameters.
  Re-run MRP: If the configuration has been corrected, re-run the MRP process to ensure that the planning data is updated and consistent with the current settings.
  Review Change Logs: Check the change logs for any recent modifications to the MPN settings that may have triggered this error. Understanding what changes were made can help in diagnosing the issue.
  Consult Documentation: Refer to SAP documentation or notes related to MPN and MRP settings for any specific guidance or known issues that may relate to this error message.
  Contact SAP Support: If the issue persists and cannot be resolved through the above steps, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  MPN (Multi-Project Network): This is a concept in SAP that allows for the management of materials across multiple projects, facilitating better planning and resource allocation.
  MRP (Material Requirements Planning): A system for calculating the materials and components needed to manufacture a product.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MD01 (MRP Run) and MD04 (Stock/Requirements List) to analyze the planning data and settings.
  
  By following these steps, you should be able to identify the cause of the MPN01055 error and implement a solution to resolve it.