ME129 - Please check whether quantities reduced via MRP are to be redistributed

SAP Error Message - Details

• Message type: E = Error

• Message class: ME - Purchasing: General Messages

• Message number: 129

• Message text: Please check whether quantities reduced via MRP are to be redistributed

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message ME129 - Please check whether quantities reduced via MRP are to be redistributed ?

  The SAP error message ME129 typically occurs in the context of Material Requirements Planning (MRP) when there are issues related to the quantities of materials that have been reduced and whether those quantities should be redistributed among the various requirements. Here’s a breakdown of the cause, potential solutions, and related information for this error:
  Cause:
  
  MRP Run Issues: The error often arises during an MRP run when the system detects that the planned quantities for certain materials have been reduced, but it is unclear whether these reductions should be redistributed to other requirements.
  Configuration Settings: There may be settings in the MRP configuration that dictate how reductions in quantities should be handled, and if these settings are not properly configured, it can lead to this error.
  Material Master Data: Inconsistencies or missing data in the material master records can also trigger this error, particularly in the planning parameters.
  Demand and Supply Mismatch: If there is a mismatch between demand and supply, the system may not know how to handle the reduced quantities.
  
  Solution:
  
  Check MRP Configuration: Review the MRP configuration settings in the system. Ensure that the settings for quantity reductions and redistribution are correctly configured according to your business processes.
  Review Material Master Data: Check the material master data for the affected materials. Ensure that all relevant fields, especially those related to planning, are correctly filled out.
  Analyze MRP Results: Look at the MRP results to understand why the quantities were reduced. This can provide insights into whether the reductions were expected or if there are underlying issues that need to be addressed.
  Redistribution Settings: If the business process requires redistribution of reduced quantities, ensure that the appropriate settings are enabled in the MRP configuration.
  Run MRP Again: After making any necessary adjustments, run the MRP process again to see if the error persists.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on handling MRP errors and understanding the implications of quantity reductions.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MD01 (MRP Run), MD04 (Stock/Requirements List), and MD05 (MRP List) to analyze and troubleshoot MRP issues.
  SAP Notes: Check for any SAP Notes related to MRP and error ME129, as there may be specific patches or updates that address known issues.
  User Forums and Communities: Engage with SAP user communities or forums where similar issues may have been discussed, providing additional insights or solutions from other users’ experiences.
  
  By following these steps, you should be able to diagnose and resolve the ME129 error in SAP effectively.