How To Fix CN137 - Specified assignment to standard network does not exist

CN137 - Overview

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 137

• Message text: Specified assignment to standard network does not exist

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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CN137 - Details

• The SAP error message CN137, which states "Specified assignment to standard network does not exist," typically occurs in the context of project management and network planning within SAP. This error indicates that the system cannot find a specific assignment or relationship that is expected to exist in the standard network.
  Causes:
  
  Missing Assignment: The assignment between the network and the activity or component may not have been created or may have been deleted.
  Incorrect Network Number: The network number specified in the transaction may be incorrect or does not exist in the system.
  Data Inconsistency: There may be inconsistencies in the data, such as missing or incorrect entries in the database.
  Authorization Issues: The user may not have the necessary authorizations to view or modify the network assignments.
  Network Status: The network might be in a status that does not allow for certain operations (e.g., locked or archived).
  
  Solutions:
  
  Check Network Assignment: Verify that the assignment between the