How To Fix OO423 - Changing ABAP Managed Stored Procedures is not supported in SAP GUI

OO423 - Overview

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 423

• Message text: Changing ABAP Managed Stored Procedures is not supported in SAP GUI

What causes this issue?

Changing classes containing ABAP Managed Database Procedures is not
supported by Class Builder (in SAP GUI).
The class &v1& implements the interface IF_AMDP_MARKER_HDB. This means,
it provides the option to add ABAP Managed Database Procedures to the
class.
You forced Class Builder to allow changes in class &v1& because you
defined the parameter SEO_SOURCEBASED_AMDP in your user settings.
This mode is intended for support use cases only.

System Response

Class Builder allows changing class &v1& because you defined the
parameter SEO_SOURCEBASED_AMDP in your user settings.

How to fix this error?

Remove the SEO_SOURCEBASED_AMDP parameter from your user settings and
use ABAP development tools for SAP NetWeaver (ADT) to edit the class.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OO423 - Changing ABAP Managed Stored Procedures is not supported in SAP GUI ?

  The error message "OO423 Changing ABAP Managed Stored Procedures is not supported in SAP GUI" typically occurs in the context of working with ABAP Managed Database Procedures (AMDP) in SAP systems. This error indicates that you are trying to modify an ABAP Managed Stored Procedure using the SAP GUI, which is not supported.
  
  Cause:
  The primary cause of this error is that ABAP Managed Database Procedures are designed to be managed and edited through the ABAP Development Tools (ADT) in Eclipse rather than through the traditional SAP GUI. The SAP GUI does not support the necessary functionalities for editing or changing AMDPs.
  
  Solution:
  To resolve this issue, you should use the ABAP Development Tools (ADT) in Eclipse. Here are the steps to do so:
  
  
  Install Eclipse: If you haven't already, download and install the Eclipse IDE. Make sure to install the ABAP Development Tools plugin.
  
  
  Connect to your SAP System: Open Eclipse and connect to your