How To Fix CRMS4_PS_NET179 - Predecessor NCD missing for NCU &2, payment period &3

SAP Error Message - Details

• Message type: E = Error

• Message class: CRMS4_PS_NET - Net Calculation

• Message number: 179

• Message text: Predecessor NCD missing for NCU &2, payment period &3

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CRMS4_PS_NET179 - Predecessor NCD missing for NCU &2, payment period &3 ?

  The SAP error message CRMS4_PS_NET179 typically occurs in the context of project management or service management within the SAP system, particularly when dealing with network activities and their dependencies. This error indicates that a predecessor (NCD - Network Component Dependency) is missing for a specific network activity (NCU - Network Component Unit) during a specified payment period.
  Cause:
  
  
  Missing Predecessor: The error suggests that the system is unable to find a predecessor activity that is required for the current activity to proceed. This could be due to:
  
  The predecessor activity was not created or defined in the system.
  The predecessor activity was deleted or is inactive.
  There is a configuration issue in the project or network structure.
  
  
  
  Incorrect Configuration: The project or network might not be set up correctly, leading to missing links between activities.
  
  
  Data Inconsistencies: There may be inconsistencies in the data related to the project or network activities, such as incorrect assignment of activities or missing dependencies.
  
  
  Solution:
  
  
  Check Predecessor Activities: 
  
  Go to the project or network structure and verify if the predecessor activity exists.
  Ensure that the predecessor is correctly linked to the current activity.
  
  
  
  Create or Restore Predecessor: 
  
  If the predecessor is missing, you may need to create it or restore it if it was deleted.
  Ensure that the predecessor activity is active and correctly configured.
  
  
  
  Review Configuration: 
  
  Check the configuration settings for the project or network to ensure that all dependencies are correctly defined.
  Make sure that the payment periods are correctly set up and that they align with the project timeline.
  
  
  
  Data Consistency Check: 
  
  Run data consistency checks in the SAP system to identify and resolve any inconsistencies in the project or network data.
  
  
  
  Consult Documentation: 
  
  Refer to SAP documentation or help resources for specific guidance on handling network activities and dependencies.
  
  
  
  Contact SAP Support: 
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like CJ20N (Project Builder) or CN41 (Network Overview) to analyze and manage project and network activities.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify the cause of the CRMS4_PS_NET179 error and implement a solution to resolve it.