How To Fix MI521 - Screen reference for material type & already exists

MI521 - Overview

• Message type: E = Error

• Message class: MI - Customizing for the Material Master

• Message number: 521

• Message text: Screen reference for material type & already exists

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 MI521 - Screen reference for material type & already exists ?

  The SAP error message MI521 indicates that there is an attempt to create a screen reference for a material type that already exists in the system. This typically occurs when you are trying to create or modify a material master record, and the system detects that a screen reference for the specified material type has already been defined.
  
  Cause:
  
  
  Duplicate Screen Reference: The primary cause of this error is that a screen reference for the specified material type has already been created in the system. This can happen if the same material type is being processed multiple times or if there is an attempt to create a new screen reference without first checking for existing ones.
  
  
  
  Configuration Issues: There may be issues in the configuration settings related to material types or screen references that lead to this error.
  
  
  
  Solution:
  
  
  Check Existing Screen References: 
  
  Navigate to the relevant transaction (usually in the IMG settings) to check