How To Fix DT964 - Group name & in table & is specified twice

SAP Error Message - Details

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 964

• Message text: Group name & in table & is specified twice

What causes this issue?

In table/structure &V2& you are working with named includes. At least
two of the named includes have the same group names. These names must
be unique.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Change the group names so that none is used more than once.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT964 - Group name & in table & is specified twice ?

  The SAP error message DT964 indicates that there is a duplicate entry for a group name in a specific table. This typically occurs when you are trying to create or modify a data structure (like a table or a data element) that has already been defined with the same name in the system.
  Cause:
  
  Duplicate Definition: The most common cause of this error is that the group name you are trying to use has already been defined in the specified table.
  Transport Issues: If you are transporting objects between systems (e.g., from development to quality assurance), there may be conflicts if the same group name exists in both systems.
  Development Errors: During development, if multiple developers are working on the same object or if there are multiple versions of the same object, it can lead to this error.
  
  Solution:
  
  
  Check for Duplicates: 
  
  Go to the relevant table in the Data Dictionary (SE11) and check if the group name is already defined. If it is, you will need to either remove the duplicate or rename your new entry.
  
  
  
  Modify the Group Name: 
  
  If you find that the group name is indeed duplicated, consider renaming your new group to something unique that does not conflict with existing entries.
  
  
  
  Transport Management: 
  
  If this issue arises during a transport, ensure that the transport requests are correctly managed and that there are no conflicting objects in the target system.
  
  
  
  Check for Active Versions: 
  
  Ensure that there are no active versions of the object that might be causing the conflict. You can check this in the object list in the Data Dictionary.
  
  
  
  Consult Documentation: 
  
  Review SAP documentation or notes related to this error for any specific guidance or patches that may address the issue.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SE11 (Data Dictionary)
  SE80 (Object Navigator)
  SE37 (Function Module)
  SE24 (Class Builder)
  
  
  
  SAP Notes: 
  
  Check SAP Notes for any known issues or updates related to this error message. You can search for DT964 in the SAP Support Portal.
  
  
  
  Debugging: 
  
  If you are unable to resolve the issue, consider debugging the program or transaction that is generating the error to get more context on where the duplicate is being referenced.
  
  
  
  By following these steps, you should be able to identify and resolve the cause of the DT964 error in your SAP system.