How To Fix /SAPAPO/DC_MSG021 - Changes in display mode are not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/DC_MSG -

• Message number: 021

• Message text: Changes in display mode are not allowed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/DC_MSG021 - Changes in display mode are not allowed ?

  The SAP error message /SAPAPO/DC_MSG021 Changes in display mode are not allowed typically occurs in the context of SAP Advanced Planning and Optimization (APO) when a user attempts to make changes to data while in display mode. This is a common restriction in many SAP transactions to prevent unintentional modifications to data that should only be viewed.
  Cause:
  The primary cause of this error is that the user is trying to edit or change data in a transaction or application that is currently set to display mode. In display mode, the system allows users to view data but does not permit any modifications.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Switch to Change Mode: 
  
  If you need to make changes, ensure that you are in change mode. Look for a button or option labeled "Change" or "Edit" in the user interface. This will allow you to modify the data.
  
  
  
  Check User Permissions: 
  
  Ensure that your user role has the necessary permissions to make changes in the specific transaction or application. If you do not have the required permissions, you may need to contact your SAP administrator.
  
  
  
  Review Transaction Settings: 
  
  Some transactions may have specific settings that restrict changes based on certain conditions. Review the transaction settings or consult with your SAP functional consultant to understand if there are any restrictions in place.
  
  
  
  Use the Correct Transaction Code: 
  
  Make sure you are using the correct transaction code for the action you want to perform. Some codes are specifically for display purposes, while others allow for changes.
  
  
  
  Check for Locks: 
  
  In some cases, the data you are trying to change may be locked by another user or process. Check if there are any locks on the data and resolve them if necessary.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific issues related to the error message. SAP frequently updates its knowledge base with solutions to common problems.
  Documentation: Refer to the official SAP documentation for the specific module you are working with to understand the functionalities and limitations of the transaction.
  User Training: If this error occurs frequently, consider providing training for users on how to navigate the system and understand the difference between display and change modes.
  
  By following these steps, you should be able to resolve the error and proceed with your tasks in SAP APO.