How To Fix SY490 - References from classes and type groups cannot be created

SY490 - Overview

• Message type: E = Error

• Message class: SY - ABAP/4 system messages

• Message number: 490

• Message text: References from classes and type groups cannot be created

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 SY490 - References from classes and type groups cannot be created ?

  The SAP error message SY490 indicates that there is an issue with the creation of references from classes and type groups. This error typically arises in the context of ABAP programming when there are problems with the definitions or declarations of classes or types.
  Causes of SY490
  
  
  Invalid Class or Type Group Definition: The class or type group you are trying to reference may not be defined correctly or may not exist in the system.
  
  
  Visibility Issues: The class or type group might not be visible in the current context due to access restrictions or scope issues.
  
  
  Syntax Errors: There may be syntax errors in the code that prevent the proper creation of references.
  
  
  Inconsistent Transport Requests: If the class or type group was recently transported and the transport request is inconsistent, it may lead to this error.
  
  
  Namespace Issues: If you are working in a specific namespace and the class or type group is not