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

EN500 - Overview

• 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