How To Fix CJ456 - & key(s) were changed

SAP Error Message - Details

• Message type: E = Error

• Message class: CJ - Project master data and structure

• Message number: 456

• Message text: & key(s) were changed

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CJ456 - & key(s) were changed ?

  The SAP error message CJ456 typically indicates that there is an issue related to the project definition or the project structure in the Project System (PS) module. The message "key(s) were changed" suggests that there have been modifications to the project keys or related data that are causing inconsistencies.
  Cause:
  
  Changes in Project Structure: The project definition or WBS (Work Breakdown Structure) elements may have been modified after they were initially created, leading to inconsistencies.
  Data Inconsistencies: There may be inconsistencies in the data due to changes in the project hierarchy or related master data.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to view or modify certain project elements, leading to this error.
  System Configuration: Incorrect configuration settings in the Project System module can also lead to this error.
  
  Solution:
  
  Check Project Structure: Review the project structure and ensure that all WBS elements and project definitions are correctly set up. Look for any recent changes that may have caused the issue.
  Consistency Check: Use transaction code CJEN (Project Structure Change) to check for inconsistencies in the project structure and correct them.
  Authorization Check: Ensure that the user has the necessary authorizations to access and modify the project elements. You can check this with transaction code SU53 to see if there are any authorization issues.
  Recreate Project Elements: If the project structure is too inconsistent, consider recreating the affected project elements.
  Consult Documentation: Review SAP documentation or notes related to the specific error message for any additional guidance or patches that may be available.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CJ20N (Project Builder), CJ02 (Change Project), and CJ03 (Display Project) to manage project definitions and structures.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for CJ456 in the SAP Support Portal.
  User Forums: Consider visiting SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or functional team for further investigation.