How To Fix 5N309 - There is an existing activity &1 with latest date &2

SAP Error Message - Details

• Message type: E = Error

• Message class: 5N - HR NL: Error Messages for Infotype Module Pools (NL)

• Message number: 309

• Message text: There is an existing activity &1 with latest date &2

What causes this issue?

An activity &V1& with latest date &V2& already exists.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Enter another latest date.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 5N309 - There is an existing activity &1 with latest date &2 ?

  The SAP error message 5N309, which states "There is an existing activity &1 with latest date &2," typically occurs in the context of project management or activity planning within SAP. This error indicates that there is already an existing activity in the system that has a later date than the one you are trying to enter or modify. 
  Cause:
  
  Duplicate Activity: You are attempting to create or modify an activity that overlaps with an existing one that has a later date.
  Incorrect Date Entry: The date you are trying to enter is earlier than the date of an existing activity.
  Project Structure Issues: There may be issues with the project structure or hierarchy that are causing conflicts with the dates of activities.
  
  Solution:
  
  Check Existing Activities: Review the existing activities in the project to identify the one that is causing the conflict. You can do this by navigating to the relevant project or activity management transaction (e.g., CJ20N for project management).
  Adjust Dates: If the existing activity is valid, consider adjusting the dates of the new activity you are trying to create or modify to ensure there are no overlaps.
  Delete or Modify Existing Activity: If the existing activity is no longer needed or is incorrect, you may delete or modify it to resolve the conflict.
  Consult Documentation: Refer to your project documentation or guidelines to ensure that you are following the correct procedures for activity creation and modification.
  Contact Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting the SAP community for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CJ20N (Project Builder), CJ02 (Change Project), or CJ03 (Display Project) to manage project activities effectively.
  SAP Notes: Check for any SAP Notes related to this error message for additional insights or patches that may address the issue.
  User Permissions: Ensure that you have the necessary permissions to create or modify activities within the project.
  
  By following these steps, you should be able to identify the cause of the error and implement a suitable solution.