How To Fix MA157 - Event lines already created

MA157 - Overview

• 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.

MA157 - Details

• 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