How To Fix MEPO857 - Changing distribution indicator from/to 3 (value-based) not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: MEPO - New Purchase Order Dialog

• Message number: 857

• Message text: Changing distribution indicator from/to 3 (value-based) not possible

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MEPO857 - Changing distribution indicator from/to 3 (value-based) not possible ?

  The SAP error message MEPO857 indicates that there is an issue with changing the distribution indicator for a purchase order or a purchase requisition. Specifically, it states that changing the distribution indicator from or to value-based (indicated by the value '3') is not possible. This typically occurs in the context of purchase orders that are linked to a specific distribution method.
  Cause:
  The error can occur due to several reasons:
  
  Inconsistent Data: The purchase order or requisition may have been created with a specific distribution method that is incompatible with the change you are trying to make.
  Existing Documents: If there are already existing documents (like invoices or goods receipts) that reference the purchase order, changing the distribution indicator may not be allowed.
  Configuration Settings: The system configuration may restrict changes to the distribution indicator based on business rules or settings in the purchasing module.
  Value-Based Indicator: The value-based distribution indicator is typically used for certain types of procurement processes, and changing it may violate the rules set in the system.
  
  Solution:
  To resolve the MEPO857 error, consider the following steps:
  
  
  Check Existing Documents: Verify if there are any existing documents (invoices, goods receipts) associated with the purchase order. If so, you may need to reverse or delete these documents before making changes.
  
  
  Review Purchase Order Details: Look at the details of the purchase order to ensure that the distribution method you are trying to change to is valid and compatible with the current settings.
  
  
  Consult Configuration: If you have access to the configuration settings, check the settings related to the distribution indicators in the purchasing module. Ensure that the settings allow for the changes you are trying to make.
  
  
  Use Transaction Codes: Use transaction codes like ME22N (Change Purchase Order) to attempt to make the change again, ensuring that you are following the correct process.
  
  
  Contact Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting the SAP Help Portal for further assistance.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  Documentation: Review SAP documentation related to purchase order management and distribution indicators for a better understanding of the rules and processes involved.
  User Forums: Engage with SAP user communities or forums where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the root cause of the MEPO857 error and take appropriate action to resolve it.