How To Fix CN134 - Enter activity only together with network

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 134

• Message text: Enter activity only together with network

What causes this issue?

In order to be able to search for PS texts for one activity in a network
you must maintain the network and the activity.

System Response

INCLUDE 'NA_ALLG_NOFUNKTION' OBJECT DOKU ID TX

How to fix this error?

Enter the network number also.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN134 - Enter activity only together with network ?

  The SAP error message CN134 ("Enter activity only together with network") typically occurs in the context of project management within SAP, particularly when working with networks and activities in the Project System (PS) module. This error indicates that the system expects an activity to be associated with a network, but it has not been provided.
  Cause:
  The error arises when:
  
  You are trying to enter or modify an activity in a project without specifying a corresponding network.
  The system requires that activities be linked to a network for proper project planning and execution.
  The activity you are trying to create or modify is not associated with any network, which is mandatory in the context of project management in SAP.
  
  Solution:
  To resolve the CN134 error, you can take the following steps:
  
  
  Check Network Assignment:
  
  Ensure that the activity you are trying to enter is associated with a valid network. You can do this by navigating to the network in the Project System and checking if the activity is linked correctly.
  
  
  
  Create or Assign a Network:
  
  If the activity is not linked to any network, you need to either create a new network or assign the existing network to the activity. You can do this in the network maintenance transaction (e.g., CN21 for creating a network or CN22 for changing a network).
  
  
  
  Use the Correct Transaction:
  
  Make sure you are using the correct transaction codes for entering activities. For example, use CJ20N for project planning, where you can manage both networks and activities.
  
  
  
  Review Project Structure:
  
  Check the overall project structure to ensure that all components (networks, activities, WBS elements) are correctly defined and linked.
  
  
  
  Consult Documentation:
  
  If you are unsure about the process, refer to SAP documentation or user manuals related to Project System (PS) for detailed guidance on managing networks and activities.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  CJ20N: Project Builder
  CN21: Create Network
  CN22: Change Network
  CN23: Display Network
  
  
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message, as there may be known issues or enhancements that could affect your system.
  
  
  User Roles and Authorizations: Ensure that you have the necessary authorizations to create or modify networks and activities in the Project System.
  
  
  By following these steps, you should be able to resolve the CN134 error and successfully manage your project activities within SAP.