How To Fix SMT_CONFIG154 - A fixed value cannot be assigned to a reference

SAP Error Message - Details

• Message type: E = Error

• Message class: SMT_CONFIG - Configuration message class

• Message number: 154

• Message text: A fixed value cannot be assigned to a reference

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message SMT_CONFIG154 - A fixed value cannot be assigned to a reference ?

  The SAP error message SMT_CONFIG154, which states "A fixed value cannot be assigned to a reference," typically occurs in the context of SAP's configuration or programming, particularly when dealing with data types and variable assignments in ABAP or similar environments.
  Cause:
  This error usually arises when there is an attempt to assign a fixed value (like a constant or literal) to a reference variable. In ABAP, reference variables are meant to point to objects or data structures, and you cannot directly assign a fixed value to them. Instead, you need to assign a reference to an object or a data structure.
  Solution:
  To resolve this error, you should ensure that you are assigning a reference to a variable rather than a fixed value. Here are some steps you can take:
  
  
  Check Variable Types: Ensure that the variable you are trying to assign a value to is indeed a reference type. If it is a value type, you need to change your approach.
  
  
  Use Object Creation: If you are trying to assign a fixed value to a reference variable, consider creating an instance of the object or structure that the reference variable is supposed to point to. For example:
  DATA: ref TYPE REF TO my_class.
  CREATE OBJECT ref.
  
  
  Assigning Values: If you need to assign a fixed value to a field within an object, first create the object and then assign the value to the field of that object:
  DATA: ref TYPE REF TO my_class.
  CREATE OBJECT ref.
  ref->field = 'Fixed Value'.
  
  
  Review Code Logic: Go through the logic of your code to ensure that you are not mistakenly trying to assign a fixed value to a reference variable. 
  
  
  Consult Documentation: If you are unsure about the types and how to handle them, refer to the SAP documentation or ABAP programming guidelines for more information on data types and object-oriented programming in ABAP.
  
  
  Related Information:
  
  ABAP Data Types: Understanding the difference between value types and reference types in ABAP is crucial. Value types hold the actual data, while reference types hold a reference to the data.
  Object-Oriented Programming in ABAP: Familiarize yourself with the principles of object-oriented programming in ABAP, including how to create and manipulate objects.
  SAP Notes and Community: Check SAP Notes for any specific patches or updates related to this error, and consider reaching out to the SAP Community for additional insights or similar experiences from other users.
  
  By following these guidelines, you should be able to resolve the SMT_CONFIG154 error effectively.