How To Fix CJ644 - Select at least two activities

SAP Error Message - Details

• Message type: E = Error

• Message class: CJ - Project master data and structure

• Message number: 644

• Message text: Select at least two activities

What causes this issue?

If you have selected more than two activities, these activities are
connected with relationships according to the order of the activity
numbers.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CJ644 - Select at least two activities ?

  The SAP error message CJ644 typically occurs in the context of project management within the SAP system, particularly when dealing with project structures and activities in Project System (PS). The error message indicates that the system requires the selection of at least two activities for a certain operation, such as a report or a transaction that involves multiple activities.
  Cause:
  
  Insufficient Selection: The user has attempted to execute a function that requires at least two activities to be selected, but only one or none has been selected.
  Configuration Issues: There may be configuration settings in the project management module that require a minimum number of activities to be selected for certain operations.
  
  Solution:
  
  Select Additional Activities: Ensure that you select at least two activities before executing the function that triggered the error. You can do this by checking the project structure and selecting the relevant activities from the list.
  Review Transaction Requirements: Check the documentation or help files related to the specific transaction you are trying to execute. Some transactions may have specific requirements regarding the number of activities that need to be selected.
  Consult with SAP Support: If the issue persists, it may be beneficial to consult with your SAP support team or refer to SAP Notes for any known issues or patches related to this error.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in the Project System module, such as CJ20N (Project Builder) or CJ03 (Display Work Breakdown Structure).
  User Authorization: Ensure that you have the necessary authorizations to view and select multiple activities within the project.
  SAP Documentation: Refer to the official SAP documentation or help portal for detailed information on project management functionalities and error messages.
  
  By following these steps, you should be able to resolve the CJ644 error and continue with your project management tasks in SAP.