How To Fix CR231 - You can only assign a different superior resource in the graphic

SAP Error Message - Details

• Message type: E = Error

• Message class: CR - (1,099) Work Center; (100,200) Capacity

• Message number: 231

• Message text: You can only assign a different superior resource in the graphic

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CR231 - You can only assign a different superior resource in the graphic ?

  The SAP error message CR231, "You can only assign a different superior resource in the graphic," typically occurs in the context of SAP Project System (PS) or SAP Controlling (CO) when you are trying to change the superior resource of a task or activity in a graphical representation, such as a network diagram or Gantt chart.
  Cause:
  This error usually arises due to one of the following reasons:
  
  
  Incorrect Context: You may be trying to change the superior resource in a context where it is not allowed. For example, if you are in a mode that does not permit changes to the hierarchy or resource assignments.
  
  
  Resource Assignment Restrictions: The system may have restrictions on changing superior resources based on the current status of the project or the specific settings in the project management configuration.
  
  
  User Authorizations: The user may not have the necessary authorizations to make changes to the resource assignments.
  
  
  Data Integrity Rules: SAP has built-in data integrity rules that prevent certain changes if they would violate the logical structure of the project or resource assignments.
  
  
  Solution:
  To resolve the CR231 error, you can try the following steps:
  
  
  Check the Mode: Ensure that you are in the correct mode for making changes. If you are in a display mode, switch to edit mode.
  
  
  Review Project Settings: Check the project settings and configurations to ensure that changing the superior resource is allowed. You may need to consult with your project manager or SAP administrator.
  
  
  User Authorizations: Verify that you have the necessary authorizations to make changes to resource assignments. If not, contact your system administrator to obtain the required permissions.
  
  
  Use Alternative Methods: If the graphical interface does not allow the change, consider using alternative methods, such as transaction codes (e.g., CJ20N for project management) to make the necessary adjustments.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on resource assignment and project management.
  
  
  Contact Support: If the issue persists, consider reaching out to SAP support or your internal IT support team for further assistance.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CJ20N (Project Builder), CN41 (Network Overview), and others that may help in managing project resources.
  SAP Notes: Check for any SAP Notes related to this error message, as they may provide additional insights or patches that address the issue.
  Training and Documentation: Consider reviewing SAP training materials or documentation related to project management and resource allocation to better understand the system's behavior and limitations.
  
  By following these steps, you should be able to address the CR231 error and successfully manage your project resources in SAP.