How To Fix FL396 - No types from classes or interfaces are allowed for RFC

FL396 - Overview

• Message type: E = Error

• Message class: FL - Function Builder messages

• Message number: 396

• Message text: No types from classes or interfaces are allowed for RFC

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FL396 - No types from classes or interfaces are allowed for RFC ?

  The SAP error message FL396: No types from classes or interfaces are allowed for RFC typically occurs when you are trying to use a class or interface type in a Remote Function Call (RFC) context. RFCs are designed to work with simple data types and structures, and they do not support complex types like classes or interfaces.
  
  Cause:
  The error is caused by attempting to define an RFC-enabled function module or method that includes parameters of class or interface types. RFC requires that all parameters be of simple types (like integers, strings, or structures) or tables of these types.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Change Parameter Types: 
  
  Review the function module or method signature and replace any class or interface parameters with simple types or structures. 
  If you need to pass complex data, consider using a structure that contains the necessary fields instead of a class.
  
  
  
  Use Structures: 
  
  Define a structure