How To Fix USMD1122 - Data model &1: SAP packages can be changed only in SAP's own systems

USMD1122 - Overview

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 122

• Message text: Data model &1: SAP packages can be changed only in SAP's own systems

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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USMD1122 - Details

• The SAP error message USMD1122 indicates that you are trying to make changes to SAP standard packages in a system that is not an SAP development system. This error typically occurs in the context of the SAP Master Data Governance (MDG) application when you attempt to modify data models or related objects that are part of the standard SAP delivery.
  
  Cause:
  The error arises because:
  
  SAP standard packages are protected from modification in non-development environments (like production or quality assurance systems) to ensure system integrity and stability.
  Changes to standard packages should only be performed in a development environment where you can transport changes through the proper channels.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check the System Type: Ensure that you are in a development system (e.g., a sandbox or development environment) where modifications to standard packages are allowed.
  
  
  Use Custom Packages: Instead of modifying standard SAP packages, create your own custom packages. This