Message type: E = Error
Message class: CN - Meldungen für Netzpläne
Message number: 018
Message text: Activity assignment: Display costs by activity
This network has activity account assignment. That means you can only
display costs using the menu <LS>Edit -> Costs -> Plan - Actual</>
INCLUDE 'NA_ALLG_NOFUNKTION' OBJECT DOKU ID TX
Select the menu options <LS>Edit -> Costs -> Planned - Actual</>.
Error message extract from SAP system. Copyright SAP SE.
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,
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