How To Fix CN873 - Activity & does not exist in standard network & &

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 873

• Message text: Activity & does not exist in standard network & &

What causes this issue?

You have entered a relationship to an activity that does not exist in
standard network &V1&, alternative &V2&.

System Response

INCLUDE 'NA_ALLG_NOVERARBEITUNG' OBJECT DOKU ID TX

How to fix this error?

INCLUDE 'NA_ALLG_URSACHEN' OBJECT DOKU ID TX
RESET N1
Check that you have entered the correct key for the activity.
Check whether the activity actually exists for the key you entered.
Enter a different key for the activity.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN873 - Activity & does not exist in standard network & & ?

  The SAP error message CN873 indicates that the system is unable to find a specific activity in the standard network. This error typically occurs in the context of project management and network planning within SAP, particularly when dealing with networks and activities in the Project System (PS) module.
  Cause:
  
  Missing Activity: The activity referenced in the error message does not exist in the specified network. This could be due to a typo in the activity number or the activity may have been deleted or not created.
  Incorrect Network Assignment: The activity may be assigned to a different network than the one being referenced.
  Authorization Issues: The user may not have the necessary authorizations to view or access the activity in question.
  Data Inconsistency: There may be inconsistencies in the data, such as missing entries in the database or issues with the network structure.
  
  Solution:
  
  Verify Activity Existence: Check if the activity exists in the network. You can do this by navigating to the network in question and reviewing the list of activities.
  Check Network Assignment: Ensure that the activity is correctly assigned to the intended network. If it is not, you may need to reassign it or create it in the correct network.
  Review Input Data: Double-check the input data for any typos or errors that may have led to the incorrect reference.
  Authorization Check: Ensure that the user has the necessary permissions to access the network and its activities. If not, contact your SAP security administrator to grant the required access.
  Data Consistency Check: Run consistency checks in the system to identify and resolve any data inconsistencies. This may involve using transaction codes like CNO1 (for network) or CN22 (for activity) to check the integrity of the data.
  Consult Documentation: Refer to SAP documentation or help resources for additional guidance on managing networks and activities.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  CN01: Create Network
  CN02: Change Network
  CN03: Display Network
  CJ20N: Project Builder
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  User Forums: Engage with SAP community forums or user groups for insights and solutions from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a technical consultant for further assistance.