How To Fix RMST1601 - Output layout is write-protected and must not be changed

RMST1601 - Overview

• Message type: E = Error

• Message class: RMST1 - RMS-TLS: Messages

• Message number: 601

• Message text: Output layout is write-protected and must not be changed

What causes this issue?

This layout is a standard SAP layout. You are not allowed to change it.

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?

Save the layout under a different name.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RMST1601 - Output layout is write-protected and must not be changed ?

  The SAP error message RMST1601, which states "Output layout is write-protected and must not be changed," typically occurs when you attempt to modify an output layout that is set to be write-protected. This can happen in various SAP modules, particularly in the context of reporting or output management.
  
  Cause:
  
  Write Protection: The output layout you are trying to modify is marked as write-protected. This is often done to prevent accidental changes to standard layouts or to maintain consistency in reporting formats.
  Authorization Issues: The user may not have the necessary authorizations to change the output layout.
  System Settings: The system may have been configured to restrict changes to certain layouts for compliance or operational reasons.
  
  
  Solution:
  
  
  Check Layout Settings:
  
  Go to the transaction where the output layout is defined (e.g., transaction SMARTFORMS, SAPscript, or SE78 for forms).
  Verify if the layout is indeed marked as write-protected. If you have the necessary permissions, you can change the status.
  
  
  
  Authorization Check:
  
  Ensure