How To Fix OO146 - The names of remotely-callable interfaces must begin with 'IF_'

SAP Error Message - Details

• Message type: E = Error

• Message class: OO - Class Builder/API

• Message number: 146

• Message text: The names of remotely-callable interfaces must begin with 'IF_'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message OO146 - The names of remotely-callable interfaces must begin with 'IF_' ?

  The SAP error message OO146 indicates that there is a naming convention issue with a remotely-callable interface in ABAP. Specifically, the error states that the names of remotely-callable interfaces must begin with the prefix 'IF_'.
  Cause:
  In SAP ABAP, remotely-callable interfaces (which are typically used in the context of Remote Function Calls or Web Services) must adhere to specific naming conventions. The prefix 'IF_' is required to clearly identify interfaces, which helps in maintaining code readability and organization. If an interface does not start with this prefix, the system raises the OO146 error.
  Solution:
  To resolve this error, you need to rename the interface that is causing the issue. Here are the steps to do this:
  
  
  Identify the Interface: Determine which interface is causing the error. This can usually be found in the error message details or by checking the code where the error occurs.
  
  
  Rename the Interface: 
  
  Go to the ABAP Workbench (SE80 or SE11).
  Locate the interface in question.
  Rename the interface to start with 'IF_'. For example, if your interface is named MyInterface, rename it to IF_MyInterface.
  
  
  
  Adjust References: After renaming the interface, ensure that all references to this interface in your code are updated to reflect the new name.
  
  
  Activate the Changes: Once the renaming and adjustments are complete, activate the interface and any dependent objects.
  
  
  Test the Changes: Run your program or function module again to ensure that the error is resolved.
  
  
  Related Information:
  
  Naming Conventions: Following naming conventions in ABAP is crucial for code maintainability and clarity. Interfaces typically start with 'IF', classes with 'CL', and function modules with 'FM_'.
  Remote Function Calls (RFC): If you are working with RFC-enabled function modules or classes, ensure that all interfaces and classes involved follow the naming conventions to avoid similar errors.
  Documentation: Refer to the SAP documentation or ABAP programming guidelines for more information on naming conventions and best practices.
  
  By adhering to these conventions, you can avoid similar errors in the future and ensure that your ABAP code is compliant with SAP standards.