How To Fix MPE_OAN041 - No start event is defined for operation activity network &1

MPE_OAN041 - Overview

• Message type: E = Error

• Message class: MPE_OAN - Operation Activity Network Messages

• Message number: 041

• Message text: No start event is defined for operation activity network &1

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MPE_OAN041 - No start event is defined for operation activity network &1 ?

  The SAP error message MPE_OAN041 indicates that there is no start event defined for the operation activity network specified by the identifier &1. This error typically occurs in the context of project management or production planning within SAP, particularly when dealing with operation activity networks in the Project System (PS) or Production Planning (PP) modules.
  
  Cause:
  The error is caused by the absence of a defined start event for the operation activity network. In SAP, operation activity networks are used to manage and schedule operations, and they require a start event to trigger the execution of the operations. If this start event is not defined, the system cannot proceed with the scheduling or execution of the operations.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Operation Activity Network:
  
  Go to the transaction code related to the operation activity network (e.g., CN21 for creating or CN22 for changing).
  Enter the network number that