How To Fix FL810 - Testing of typed interfaces is not supported at present

SAP Error Message - Details

• Message type: E = Error

• Message class: FL - Function Builder messages

• Message number: 810

• Message text: Testing of typed interfaces is not supported at present

What causes this issue?

You attempted to test a function module with an interface containing a
parameter with a reference type. This is not currently supported.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FL810 - Testing of typed interfaces is not supported at present ?

  The SAP error message FL810, which states "Testing of typed interfaces is not supported at present," typically occurs when you are trying to test a function module or method that uses typed interfaces in the ABAP Workbench or during unit testing. This limitation is due to the fact that the testing framework in SAP does not currently support typed interfaces.
  Cause:
  
  Typed Interfaces: The error arises when you attempt to test a function module or method that has a typed interface. Typed interfaces are defined using the INTERFACE keyword and are more structured than traditional parameter passing.
  Testing Framework Limitation: The SAP testing framework (such as ABAP Unit) does not support the direct testing of methods or function modules that utilize these typed interfaces.
  
  Solution:
  
  Use Un-typed Interfaces: If possible, modify the function module or method to use un-typed interfaces (i.e., using standard parameters instead of typed interfaces). This allows you to test the functionality without encountering the error.
  Create Wrapper Functions: If you cannot change the original function module or method, consider creating a wrapper function that calls the original function/module but uses un-typed parameters. You can then test this wrapper function.
  Manual Testing: If the above options are not feasible, you may need to resort to manual testing of the function/module instead of using the automated testing framework.
  Check for Updates: Keep an eye on SAP Notes and updates, as SAP may enhance the testing framework in future releases to support typed interfaces.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any updates or workarounds related to this error. SAP frequently releases notes that address specific issues or provide guidance on best practices.
  ABAP Documentation: Review the ABAP documentation for more information on typed interfaces and their usage.
  Community Forums: Engage with the SAP community forums or SAP support for additional insights or shared experiences from other users who may have encountered the same issue.
  
  By following these steps, you should be able to address the FL810 error and continue with your development and testing processes in SAP.