How To Fix CN602 - Network contains more than the nine loops found

CN602 - Overview

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 602

• Message text: Network contains more than the nine loops found

Self-Explanatory Message

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CN602 - Details

• The SAP error message CN602 ("Network contains more than the nine loops found") typically occurs in the context of project management and network planning within SAP, particularly when dealing with networks in the Project System (PS) module. This error indicates that the system has detected more than nine loops in the network structure, which can complicate the scheduling and execution of tasks.
  
  Cause:
  
  Complex Network Structure: The primary cause of this error is a complex network structure that has more than nine loops. Loops can occur when there are multiple dependencies or relationships between activities that create circular references.
  Incorrect Dependencies: Incorrectly defined relationships between tasks (e.g., finish-to-start, start-to-start) can lead to the creation of loops.
  Excessive Activities: A network with too many activities and interdependencies can exceed the system's limit for loop detection.
  
  
  Solution:
  
  Analyze the Network: Review the network structure to identify and analyze the dependencies between activities. Look for circular references or unnecessary