How To Fix EN500 - Dummy of logical register &1 exists more than once

SAP Error Message - Details

• Message type: E = Error

• Message class: EN - IS-U installation/installation structure

• Message number: 500

• Message text: Dummy of logical register &1 exists more than once

What causes this issue?

You have supplied the dummy for the logical register number &V1& with
more than one register in the time slice currently being processed.

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?

Check your entries. A logical register number my only occur once in
each time slice.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EN500 - Dummy of logical register &1 exists more than once ?

  The SAP error message "EN500 Dummy of logical register &1 exists more than once" typically occurs in the context of the SAP IS-U (Industry Solution for Utilities) module, particularly when dealing with logical registers and their associated data.
  Cause:
  This error indicates that there is a duplicate entry for a "dummy" logical register in the system. A logical register is a representation of a physical meter or a group of meters in the SAP system. The "dummy" logical register is often used for temporary or placeholder purposes. The error suggests that the system has found multiple entries for the same logical register identifier (denoted by &1), which violates the uniqueness constraint expected by the system.
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check for Duplicates:
  
  Use transaction codes like SE16 or SE11 to access the relevant database tables (e.g., EANL, EANR) and check for duplicate entries for the logical register in question.
  Look for entries with the same logical register ID and ensure that there is only one active entry.
  
  
  
  Delete or Correct Duplicates:
  
  If you find duplicate entries, you will need to determine which entry is valid and which can be deleted or corrected.
  If the duplicates are not needed, you can delete the unnecessary entries using the appropriate transaction (e.g., using transaction code SE14 for database table adjustments).
  
  
  
  Check Configuration:
  
  Review the configuration settings related to logical registers in the IS-U module to ensure that they are set up correctly and that there are no misconfigurations leading to duplicate entries.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to logical registers and the specific error message for additional guidance and best practices.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue on your own, consider reaching out to SAP support for assistance. They may provide specific notes or patches that address this issue.
  
  
  
  Related Information:
  
  Transaction Codes: SE16 (Data Browser), SE11 (Data Dictionary), SE14 (Database Utility).
  Tables: EANL (Logical Register), EANR (Register Data).
  SAP Notes: Check the SAP Support Portal for any relevant notes that may address this specific error or provide additional troubleshooting steps.
  
  By following these steps, you should be able to identify and resolve the issue causing the EN500 error in your SAP system.