CJ168 - Activities in network "&" are assigned to several WBS elements

SAP Error Message - Details

• Message type: E = Error

• Message class: CJ - Project master data and structure

• Message number: 168

• Message text: Activities in network "&" are assigned to several WBS elements

What causes this issue?

You want check the availability of a material via the WBS element. The
system checks material availability using the network assigned to the
WBS element. However, the activities in this network are assigned to
different WBS elements.
In this case, you may get an exception message for activities that are
not assigned to the WBS element you selected.

System Response

Processing continues.

How to fix this error?

You can also check the availability of a certain material on the
component overview for a particular activity, as described below:
RESET N1
Select an activity.
Select the menu options <LS>Goto -> Comp.overview (act)</>.
Select a material component and press the right mouse button and then
select <LS>Check availability</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CJ168 - Activities in network "&" are assigned to several WBS elements ?

  The SAP error message CJ168 indicates that there are activities in a network that are assigned to multiple Work Breakdown Structure (WBS) elements. This situation typically arises in project management within SAP, particularly when dealing with project networks and their associated activities.
  Cause:
  
  Multiple WBS Assignments: The primary cause of this error is that the same activity in a network is assigned to more than one WBS element. In SAP, each activity should ideally be linked to a single WBS element to maintain clear project accounting and reporting.
  Incorrect Configuration: There may be a configuration issue or a misunderstanding of how to properly assign activities to WBS elements.
  Data Entry Errors: Manual errors during data entry can lead to activities being incorrectly assigned to multiple WBS elements.
  
  Solution:
  
  Review Activity Assignments: Check the assignments of the activities in the network. You can do this by navigating to the network in question and reviewing the activity details to see which WBS elements are assigned.
  Reassign Activities: If you find that an activity is indeed assigned to multiple WBS elements, you will need to reassign it to the correct WBS element. This can be done by:
  
  Going to the network activity in the SAP GUI.
  Editing the activity and changing the WBS element assignment to the correct one.
  
  
  Delete Duplicate Assignments: If there are duplicate assignments, remove the unnecessary ones to ensure that each activity is linked to only one WBS element.
  Check for Dependencies: Ensure that the dependencies and relationships between activities and WBS elements are correctly defined to avoid future issues.
  Consult Documentation: Refer to SAP documentation or your organization's guidelines on project management and network planning to ensure compliance with best practices.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like CJ20N (Project Builder) or CN21 (Create Network) to manage networks and activities.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  Training and Support: If you are unsure about how to proceed, consider reaching out to your SAP support team or consulting with a colleague who has experience in project management within SAP.
  
  By following these steps, you should be able to resolve the CJ168 error and ensure that your project activities are correctly assigned to WBS elements.