How To Fix /PM0/3FWTG_GENERATOR021 - Template class &1 is not in namespace &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /PM0/3FWTG_GENERATOR -

• Message number: 021

• Message text: Template class &1 is not in namespace &2

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PM0/3FWTG_GENERATOR021 - Template class &1 is not in namespace &2 ?

  The SAP error message /PM0/3FWTG_GENERATOR021 Template class &1 is not in namespace &2 typically indicates that there is an issue with the template class being referenced in your SAP system. This error can occur in various contexts, such as when working with custom developments, templates, or when generating reports.
  Cause:
  
  Incorrect Namespace: The template class you are trying to use is not found in the specified namespace. This could happen if the class was moved, deleted, or if there is a typo in the namespace or class name.
  Missing Class: The class might not exist in the system at all, either due to it not being created or due to transport issues where the class was not transported correctly.
  Authorization Issues: Sometimes, the user might not have the necessary authorizations to access the specified class or namespace.
  Development Environment Issues: If you are working in a development environment, the class might exist in another system (like production) but not in the development system.
  
  Solution:
  
  Check Class and Namespace: Verify that the class name and namespace are correct. You can do this by navigating to the ABAP Workbench (SE80) and checking if the class exists in the specified namespace.
  Transport Issues: If the class is supposed to be in the system but is missing, check the transport requests to ensure that the class was transported correctly.
  Create or Restore Class: If the class does not exist, you may need to create it or restore it from a backup or transport.
  Authorization Check: Ensure that the user has the necessary authorizations to access the class. You can check this in transaction SU53 after the error occurs.
  Consult Documentation: If the class is part of a standard SAP package or solution, consult the relevant SAP documentation or support notes for guidance on how to resolve the issue.
  
  Related Information:
  
  Transaction Codes: Use SE80 (Object Navigator) to check for the class and namespace, and SE11 (Data Dictionary) to check for any related database objects.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that might address this specific error or provide additional context.
  Debugging: If you have access to debugging tools, you can set breakpoints to see where the error is being triggered in the code.
  
  If the issue persists after trying the above solutions, consider reaching out to your SAP Basis or development team for further assistance.