How To Fix DMCLG139 - File-identifier <&1> exists at least twice

DMCLG139 - Overview

• Message type: E = Error

• Message class: DMCLG - DMC Tool Development

• Message number: 139

• Message text: File-identifier <&1> exists at least twice

What causes this issue?

File identifiers must be uniquely selected.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

DMCLG139 - Details

• The SAP error message DMCLG139 indicates that there is a duplicate file identifier in the system. This typically occurs when the system detects that a file identifier (which is a unique identifier for a file) is being used more than once, leading to conflicts in file management or processing.
  
  Cause:
  
  Duplicate Entries: The most common cause is that the same file identifier has been assigned to multiple files or entries in the system.
  Data Migration Issues: If data has been migrated from another system or if files have been imported, it’s possible that duplicates were created during this process.
  Incorrect Configuration: Misconfiguration in the system settings or file management processes can lead to the generation of duplicate identifiers.
  
  
  Solution:
  
  Identify Duplicates: Use transaction codes or reports to identify where the duplicate file identifiers are located. This may involve querying the database or using specific SAP tools to find the entries.
  Remove or Rename Duplicates: Once identified, you