How To Fix CN458 - Scheduling with more than two levels is not supported

CN458 - Overview

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 458

• Message text: Scheduling with more than two levels is not supported

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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.

Unfortunately, there isn't any extra information in this error notice.

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CN458 - Details

• The SAP error message CN458, which states "Scheduling with more than two levels is not supported," typically occurs in the context of project management and network scheduling within SAP. This error indicates that the system has encountered a situation where a scheduling operation involves more than two levels of hierarchy, which is not supported by the standard SAP scheduling functionality.
  
  Cause:
  
  Hierarchical Structure: The error usually arises when you have a complex project structure with multiple levels of tasks or activities that exceed the two-level hierarchy (e.g., main task and sub-task).
  Network Planning: In network planning, if you are trying to schedule activities that are linked in a way that creates more than two levels of dependencies, the system will throw this error.
  
  Configuration Issues: There may be configuration settings in the project management module that do not allow for more than two levels of scheduling.
  
  
  Solution:
  
  Simplify the Structure: Review the project structure and try