How To Fix GS006 - System error: Transaction code & is unknown

GS006 - Overview

• Message type: E = Error

• Message class: GS - Sets

• Message number: 006

• Message text: System error: Transaction code & is unknown

What causes this issue?

The system discovered a fault in the call-up mechanism in set
maintenance.
(Note for the system administrator: the set maintenance transaction has
been called up using an unknown transaction code).

System Response

Set maintenance is not possible.

How to fix this error?

Inform the system administrator and state the name of the transaction
you used to call up set maintenance.

Error message extract from SAP system. Copyright SAP SE.

GS006 - Details

• The SAP error message GS006, which states "System error: Transaction code & is unknown," typically indicates that the transaction code you are trying to execute does not exist in the SAP system. This can happen for several reasons. Below are the potential causes, solutions, and related information for this error:
  Causes:
  
  Incorrect Transaction Code: The transaction code entered may be misspelled or incorrect.
  Authorization Issues: The user may not have the necessary authorizations to access the transaction code.
  Missing Transaction Code: The transaction code may not be defined in the system, possibly due to missing configuration or it being part of a module that is not installed.
  System Configuration: The transaction code may have been removed or deactivated in the system configuration.
  Client-Specific Issues: The transaction code may exist in one client but not in another, especially in systems with multiple clients.
  
  Solutions:
  
  Verify Transaction Code: Double-check the transaction code for any typos or errors. Ensure that you