How To Fix OO674 - The type &1 must be a structure to use it as Boxed Component.

SAP Error Message - Details

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 674

• Message text: The type &1 must be a structure to use it as Boxed Component.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message OO674 - The type &1 must be a structure to use it as Boxed Component. ?

  The SAP error message OO674 indicates that there is an issue with the type definition of a component in a boxed component context. Specifically, the error states that the type specified (denoted as &1) must be a structure in order to be used as a boxed component.
  Cause:
  This error typically occurs when you are trying to use a data type that is not a structure (e.g., a simple data type like a string, integer, or a table) as a boxed component in an ABAP class or interface. Boxed components are expected to be structures because they allow for the encapsulation of multiple fields, which is necessary for the intended functionality.
  Solution:
  To resolve this error, you need to ensure that the type you are trying to use as a boxed component is indeed a structure. Here are the steps you can take:
  
  
  Check the Type Definition: Verify the type of the component you are trying to use. It should be defined as a structure in the ABAP Dictionary (SE11).
  
  
  Modify the Type: If the type is not a structure, you will need to create a new structure that contains the necessary fields. You can do this by:
  
  Going to transaction SE11 (Data Dictionary).
  Creating a new structure or modifying an existing one to include the required fields.
  
  
  
  Update the Component Declaration: Once you have a valid structure, update the component declaration in your class or interface to use this new structure type.
  
  
  Recompile the Code: After making the necessary changes, recompile your code to ensure that the changes take effect.
  
  
  Related Information:
  
  Boxed Components: In ABAP, boxed components are used to encapsulate multiple fields into a single component. This is particularly useful in scenarios where you want to pass complex data types around in your application.
  Structures in ABAP: Structures are user-defined data types that can contain multiple fields of different data types. They are defined in the ABAP Dictionary and can be used to group related data together.
  ABAP Development Tools: Familiarize yourself with the ABAP Workbench (SE80) and Data Dictionary (SE11) for managing types and structures.
  
  By ensuring that you are using a structure as a boxed component, you should be able to resolve the OO674 error and proceed with your development.