How To Fix CJ644 - Select at least two activities

CJ644 - Overview

• 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