How To Fix CR390 - Technology tab page must not be inserted because it already exists

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 390

• Message text: Technology tab page must not be inserted because it already exists

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 CR390 - Technology tab page must not be inserted because it already exists ?

  The SAP error message CR390, which states "Technology tab page must not be inserted because it already exists," typically occurs in the context of creating or modifying a characteristic in the classification system. This error indicates that you are trying to add a technology tab page that is already present in the system.
  Cause:
  
  Duplicate Entry: The most common cause of this error is that the technology tab page you are trying to insert already exists in the classification system for the characteristic you are working with.
  Configuration Issues: There may be issues with the configuration settings or the way the characteristics and classes are set up in the system.
  
  Solution:
  
  Check Existing Tab Pages: Before attempting to add a new technology tab page, check the existing tab pages for the characteristic. You can do this by navigating to the classification view and reviewing the current tab pages.
  Modify Instead of Insert: If the tab page already exists, consider modifying the existing tab page instead of trying to insert a new one.
  Delete Duplicate: If you find that there are duplicates or unnecessary entries, you may need to delete the existing tab page before trying to insert a new one.
  Consult Documentation: Review SAP documentation or help resources for guidance on managing tab pages and characteristics in the classification system.
  Check Authorization: Ensure that you have the necessary authorizations to make changes to the classification system.
  
  Related Information:
  
  Transaction Codes: You may be using transaction codes like CL02 (Change Class) or CL03 (Display Class) to manage characteristics and classes.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Support: If the issue persists, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  By following these steps, you should be able to resolve the CR390 error and manage your technology tab pages effectively.