How To Fix GR401 - Reference program & does not exist

GR401 - Overview

• Message type: E = Error

• Message class: GR - Report Writer

• Message number: 401

• Message text: Reference program & does not exist

What causes this issue?

A library always requires a program whose interface (GUI) can be used
as a reference for all report groups in this library. However, program
&V1& does not exist.

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 entry.

Error message extract from SAP system. Copyright SAP SE.

GR401 - Details

• The SAP error message GR401 ("Reference program & does not exist") typically occurs when the system is unable to find a specified reference program in the SAP system. This can happen for various reasons, such as missing or incorrectly specified program names, issues with transport requests, or problems with the system configuration.
  Causes:
  
  Incorrect Program Name: The program name specified in the transaction or report is incorrect or misspelled.
  Program Not Activated: The program may not have been activated or may not exist in the current system.
  Transport Issues: The program may exist in the development environment but has not been transported to the quality or production environment.
  Authorization Issues: The user may not have the necessary authorizations to access the program.
  Namespace Issues: The program might be in a different namespace that is not accessible in the current context.
  
  Solutions:
  
  Check Program Name: Verify that the program name is correct and does not contain any typos. Ensure