How To Fix CN356 - Scheduling for network & is reset

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 356

• Message text: Scheduling for network & is reset

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CN356 - Scheduling for network & is reset ?

  The SAP error message CN356 ("Scheduling for network & is reset") typically occurs in the context of project management and network scheduling within SAP's Project System (PS) module. This error indicates that the scheduling for a specific network has been reset, which can happen for various reasons.
  Causes:
  
  Changes in Activity Dates: If there are changes made to the dates of activities within the network, it may trigger a reset of the scheduling.
  Dependencies and Constraints: If there are changes in dependencies or constraints that affect the scheduling of the network, it can lead to this error.
  Resource Availability: If there are changes in resource availability or allocation that impact the scheduling of the network, it may cause a reset.
  Manual Interventions: Manual changes made to the network or its activities can also lead to this error.
  System Configuration: Incorrect configuration settings in the project system or scheduling parameters can lead to scheduling issues.
  
  Solutions:
  
  Check Activity Dates: Review the dates of the activities within the network to ensure they are set correctly and do not conflict with each other.
  Review Dependencies: Check the dependencies and constraints of the activities to ensure they are correctly defined and do not cause scheduling conflicts.
  Resource Allocation: Verify the resource allocation and availability to ensure that resources are correctly assigned and available for the scheduled activities.
  Re-schedule the Network: After making necessary adjustments, try to re-schedule the network using the scheduling functions in SAP.
  Check for Errors: Use transaction codes like CN22 (Change Network) or CN41 (Network Overview) to check for any additional error messages or warnings that may provide more context.
  Consult Documentation: Refer to SAP documentation or help files for specific guidance on scheduling issues in the Project System module.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CN22 (Change Network), CN41 (Network Overview), and CJ20N (Project Builder) for managing networks and projects.
  SAP Notes: Check SAP Notes for any known issues or patches related to scheduling errors in the Project System.
  User Exits and Enhancements: If custom logic is implemented in your SAP system, check for any user exits or enhancements that may affect scheduling behavior.
  Training and Support: If the issue persists, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  By following these steps, you should be able to identify the cause of the CN356 error and implement a solution to resolve it.