How To Fix CN771 - Network &1 and project &2 have been summarized in different ways

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 771

• Message text: Network &1 and project &2 have been summarized in different ways

What causes this issue?

Network &V1& is assigned to project &V2&. The network and project,
however, have different types of summarization.

System Response

The system ignores the summarization criteria set for the network
activities.

How to fix this error?

You can convert networks and projects which still take part in
summarization using classification to summarization using master data
characteristics. For more information, go to the Project System IMG and
look at <DS:SIMG.SIMG_OLPR_RCJCLMIG>Convert classification
characteristics</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN771 - Network &1 and project &2 have been summarized in different ways ?

  The SAP error message CN771 indicates that there is a discrepancy in the summarization of network and project data. Specifically, it means that the network and project specified have been summarized in different ways, which can lead to inconsistencies in reporting and data processing.
  Cause:
  The error typically arises due to one of the following reasons:
  
  Different Summarization Levels: The network and project may have been summarized using different criteria or levels, leading to a mismatch.
  Data Entry Errors: Manual data entry errors or incorrect configuration settings can cause inconsistencies in how data is summarized.
  Changes in Project Structure: If the project structure has been modified (e.g., adding or removing networks), it may lead to discrepancies in summarization.
  System Configuration Issues: Incorrect settings in the SAP system related to project management or network planning can also lead to this error.
  
  Solution:
  To resolve the CN771 error, you can take the following steps:
  
  
  Check Summarization Settings: Review the summarization settings for both the network and the project. Ensure that they are consistent and aligned with the same criteria.
  
  
  Re-summarize Data: If discrepancies are found, you may need to re-summarize the data for the affected network and project. This can often be done through transaction codes like CJEN (for project management) or CN41 (for network planning).
  
  
  Review Project Structure: Ensure that the project structure is correctly defined and that all networks are properly assigned to the project.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on how to handle summarization issues in your version of SAP.
  
  
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as some issues may have been resolved in newer versions.
  
  
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CJ20N (Project Builder), CN41 (Network Overview), and CJEN (Re-summarize Project).
  SAP Notes: Check SAP Notes for any known issues or patches related to the CN771 error.
  User Forums: Engage with SAP user communities or forums where similar issues may have been discussed, providing insights or solutions from other users' experiences.
  
  By following these steps, you should be able to identify the cause of the CN771 error and implement a solution to resolve it.