How To Fix FDT_CP_MSG216 - Return parameter expected to be a structure type

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_CP_MSG -

• Message number: 216

• Message text: Return parameter expected to be a structure type

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 FDT_CP_MSG216 - Return parameter expected to be a structure type ?

  The SAP error message FDT_CP_MSG216 indicates that a return parameter in a function module or method is expected to be of a structure type, but it is not. This error typically arises in the context of using Function Design Tools (FDT) or when working with ABAP function modules that are expected to return structured data.
  Cause:
  
  Incorrect Parameter Type: The return parameter defined in the function module or method is not of the expected structure type. It could be defined as a simple data type (like a string or integer) instead of a structured type.
  Mismatch in Data Types: There may be a mismatch between the expected data type in the calling program and the actual data type defined in the function module.
  Configuration Issues: If you are using FDT, there might be configuration issues in the way the function module is set up.
  
  Solution:
  
  
  Check Function Module Definition:
  
  Go to the function module in SE37 (or SE80) and check the parameters. Ensure that the return parameter is defined as a structure type.
  If it is not, modify the function module to define the return parameter as a structure.
  
  
  
  Adjust Calling Program:
  
  In the program or method that calls the function module, ensure that the variable used to capture the return value is of the correct structure type.
  If necessary, create a variable of the appropriate structure type to hold the return value.
  
  
  
  Review FDT Configuration:
  
  If you are using FDT, check the configuration settings to ensure that the return parameter is correctly defined as a structure.
  Make sure that any mappings or transformations are correctly set up to handle structured data.
  
  
  
  Testing:
  
  After making the necessary changes, test the function module or method again to ensure that the error is resolved.
  
  
  
  Related Information:
  
  Function Modules: In SAP, function modules are reusable pieces of code that can be called from other programs. They can have input and output parameters, including return parameters.
  Structures in ABAP: Structures in ABAP are used to group related data fields together. They are defined using the TYPES statement and can be used to create complex data types.
  Debugging: If you continue to encounter issues, consider using the debugger to step through the code and inspect the data types being passed around.
  
  By following these steps, you should be able to resolve the FDT_CP_MSG216 error and ensure that your function module or method is correctly handling structured return parameters.