How To Fix CN018 - Activity assignment: Display costs by activity

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 018

• Message text: Activity assignment: Display costs by activity

What causes this issue?

This network has activity account assignment. That means you can only
display costs using the menu <LS>Edit -> Costs -> Plan - Actual</>

System Response

INCLUDE 'NA_ALLG_NOFUNKTION' OBJECT DOKU ID TX

How to fix this error?

Select the menu options <LS>Edit -> Costs -> Planned - Actual</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN018 - Activity assignment: Display costs by activity ?

  The SAP error message CN018, which states "Activity assignment: Display costs by activity," typically occurs in the context of controlling and project management modules within SAP, particularly when dealing with activity allocations and cost assignments in projects or internal orders.
  Cause:
  The CN018 error usually arises due to one of the following reasons:
  
  Missing or Incorrect Activity Type: The activity type you are trying to assign costs to may not be defined correctly in the system or may not exist.
  Cost Center or Internal Order Issues: The cost center or internal order associated with the activity may not be set up properly or may not have the necessary authorizations.
  Incorrect Configuration: There may be configuration issues in the controlling module, such as missing settings for activity types or cost allocation methods.
  Data Inconsistencies: There could be inconsistencies in the data, such as missing master data for the activity type or cost center.
  
  Solution:
  To resolve the CN018 error, you can take the following steps:
  
  
  Check Activity Type: Ensure that the activity type you are trying to use is correctly defined in the system. You can do this by navigating to the configuration settings for activity types in the controlling module.
  
  
  Verify Cost Center/Order: Check if the cost center or internal order is correctly set up and active. Ensure that it has the necessary authorizations and is assigned to the correct controlling area.
  
  
  Review Configuration: Go through the configuration settings in the controlling module to ensure that all necessary settings for activity types and cost allocations are in place.
  
  
  Data Consistency Check: Run a consistency check on the master data related to the activity type and cost center. Ensure that all required fields are filled and that there are no missing entries.
  
  
  Consult Documentation: Refer to SAP documentation or help files for specific details related to the CN018 error and its resolution.
  
  
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP support for further assistance.
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like KP26 (Activity Type Planning) or KSU5 (Actual Activity Allocation) to check or modify activity assignments.
  SAP Notes: Look for relevant SAP Notes that may address specific issues related to the CN018 error.
  User Authorizations: Ensure that the user has the necessary authorizations to perform the activity assignment.
  
  By following these steps, you should be able to identify and resolve the underlying cause of the CN018 error in SAP.