How To Fix CN038 - You can only choose selected objects together with activities

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 038

• Message text: You can only choose selected objects together with activities

What causes this issue?

In the object selection for creating a network by copying, you have
not marked <LS>activities</> but have selected subordinate objects.
This is not allowed.
Objects which are subordinate in the hierarchy can only be copied
together with the activities.

System Response

INCLUDE 'NA_ALLG_NOVERARBEITUNG' OBJECT DOKU ID TX

How to fix this error?

Select <LS>activities</> when you want to copy the subordinate objects
as well.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN038 - You can only choose selected objects together with activities ?

  The SAP error message CN038 ("You can only choose selected objects together with activities") typically occurs in the context of project management or network planning within SAP, particularly when working with project structures, activities, or networks in the Project System (PS) module.
  Cause:
  This error usually arises when you attempt to select or process multiple objects (like WBS elements, networks, or activities) that are not compatible with each other. Specifically, it indicates that the system expects you to select activities in conjunction with specific project objects, and the selection you made does not meet this requirement.
  Common Scenarios Leading to CN038:
  
  Incompatible Selections: You may have selected a combination of WBS elements and activities that are not linked or do not belong to the same project structure.
  Incorrect Object Type: You might be trying to perform an operation that requires activities but have selected only WBS elements or other object types.
  Missing Dependencies: The selected activities may not have the necessary dependencies or relationships defined in the project structure.
  
  Solution:
  To resolve the CN038 error, consider the following steps:
  
  
  Check Your Selection: Ensure that you are selecting the correct combination of objects. If you are working with activities, make sure to select them alongside their corresponding WBS elements or networks.
  
  
  Review Object Relationships: Verify that the selected objects are correctly linked. You can do this by checking the project structure and ensuring that the activities are assigned to the appropriate WBS elements or networks.
  
  
  Use the Correct Transaction: Make sure you are using the appropriate transaction code for the operation you are trying to perform. For example, if you are trying to plan or schedule activities, ensure you are in the right planning transaction.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for guidance on the specific transaction or process you are working with. This can provide insights into the expected object relationships.
  
  
  Seek Help from SAP Support: If the issue persists, consider reaching out to your SAP support team or consulting SAP Notes for any known issues or patches related to this error.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in the Project System module, such as CJ20N (Project Builder), CN41 (Network Overview), or CJ02 (Change WBS Element).
  SAP Notes: Check SAP Notes for any updates or specific fixes related to error CN038.
  Training and Documentation: Consider training sessions or documentation on project management in SAP to better understand object relationships and selection criteria.
  
  By following these steps, you should be able to identify the cause of the CN038 error and take appropriate action to resolve it.