How To Fix MA157 - Event lines already created

SAP Error Message - Details

• Message type: E = Error

• Message class: MA - Sales and Operations Planning

• Message number: 157

• Message text: Event lines already created

What causes this issue?

You have tried to create event lines twice for the same key figure.

System Response

Event lines can exist only once for a key figure.

How to fix this error?

Perform this function for a different key figure.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MA157 - Event lines already created ?

  The SAP error message MA157 ("Event lines already created") typically occurs in the context of Material Management (MM) or Production Planning (PP) when you are trying to create or modify an event for a material document or production order, but the system detects that event lines have already been created for that document.
  Cause:
  
  Duplicate Event Creation: The most common cause of this error is an attempt to create event lines for a material document or production order that already has event lines associated with it.
  Incorrect Process Flow: The process flow may not be followed correctly, leading to attempts to create events when they are not needed or allowed.
  System Configuration: There may be specific configurations or settings in the system that prevent the creation of additional event lines once the first set has been created.
  
  Solution:
  
  
  Check Existing Event Lines: Before attempting to create new event lines, check if there are already existing event lines for the material document or production order in question. You can do this by navigating to the relevant transaction (e.g., using transaction codes like MB03 for material documents or CO03 for production orders).
  
  
  Review Process Steps: Ensure that you are following the correct process steps. If you are unsure, refer to your organization's standard operating procedures or consult with a colleague or supervisor.
  
  
  Use Correct Transaction: Make sure you are using the correct transaction for the action you are trying to perform. Sometimes, using the wrong transaction can lead to errors.
  
  
  Consult Documentation: Review SAP documentation or help files related to the specific transaction or process you are working with. This can provide insights into the expected behavior and any prerequisites.
  
  
  Contact SAP Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or SAP directly for assistance. They may have additional tools or insights to help troubleshoot the problem.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MB1A, MB1B, MB1C for material movements, and CO01, CO02, CO03 for production orders.
  SAP Notes: Check for any SAP Notes related to this error message. SAP frequently releases notes that address known issues and provide solutions or workarounds.
  User Authorization: Ensure that you have the necessary authorizations to perform the actions you are attempting. Lack of proper authorization can sometimes lead to unexpected errors.
  
  By following these steps, you should be able to identify the cause of the MA157 error and take appropriate action to resolve it.