How To Fix EU400 - Reference to object type & only allowed with "REF TO"

EU400 - Overview

• Message type: E = Error

• Message class: EU - Development Environment

• Message number: 400

• Message text: Reference to object type & only allowed with "REF TO"

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 EU400 - Reference to object type & only allowed with "REF TO" ?

  The SAP error message EU400 indicates that there is an issue with the way an object type is being referenced in your ABAP code. Specifically, the error message states that a reference to an object type can only be made using the "REF TO" syntax. This typically occurs when you are trying to use an object type in a context where a reference to that object type is expected.
  
  Cause:
  The error usually arises in the following scenarios:
  
  Incorrect Declaration: You may have declared an object type variable without using the REF TO syntax. For example, if you are trying to declare a variable of a class type, you need to declare it as a reference.
  Improper Usage: You might be trying to use an object type directly in a context that requires a reference to that object type, such as in method calls or when assigning values.
  
  
  Solution:
  To resolve the EU400 error, you should