How To Fix WER421 - Display mode not allowed for new elements

WER421 - Overview

• Message type: E = Error

• Message class: WER - Messages for the package WER

• Message number: 421

• Message text: Display mode not allowed for new elements

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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Smart SAP Assistant

• What is the cause and solution for SAP error message WER421 - Display mode not allowed for new elements ?

  Certainly! Here's a detailed explanation for the SAP error message WER421 - Display mode not allowed for new elements:
  
  Error Message
  WER421: Display mode not allowed for new elements
  
  Cause
  This error occurs when you try to create a new element (such as a characteristic, class, or any master data object) in display mode instead of change mode. In SAP, new elements must be created or modified in change mode, and display mode is only for viewing existing elements.
  For example, if you open a transaction or screen in display mode and attempt to create a new entry, the system will prevent this and throw the WER421 error.
  
  When does it typically occur?
  
  When you open a transaction or master data object in display mode and try to create a new entry.
  When you use a transaction code or menu path that defaults to display mode.
  When user authorizations restrict you to display mode only.
  When a program or screen