How To Fix E0035 - Function module & is not RFC-compatible

SAP Error Message - Details

• Message type: E = Error

• Message class: E0 - SAP EDI messages

• Message number: 035

• Message text: Function module & is not RFC-compatible

What causes this issue?

Function module &v1&, which should assume reponsibility for further
IDoc processing, has been stored for port &v2&.
Such function modules must support Remote Function Call. However,
function module &v1& does not have this attribute. As a result, this
IDoc could not be processed further.

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?

Please change the attributes of function module &v1& or enter an
RFC-compatible function module in the port definition for port &v2&.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E0035 - Function module & is not RFC-compatible ?

  The SAP error message E0035, which states that a function module is not RFC-compatible, typically occurs when you attempt to call a function module remotely using Remote Function Call (RFC), but the function module does not meet the necessary criteria for RFC compatibility.
  Causes:
  
  Non-RFC-Compatible Function Module: The function module may not be defined as RFC-compatible. This can happen if the function module is not marked as RFC-enabled in its attributes.
  Import/Export Parameters: The function module may have parameters that are not compatible with RFC. For example, it may use complex data types or structures that cannot be serialized for remote calls.
  Exceptions Handling: The function module may not handle exceptions properly, which can lead to issues when called remotely.
  Authorization Issues: The user calling the function module may not have the necessary authorizations to execute it remotely.
  
  Solutions:
  
  
  Check Function Module Attributes: 
  
  Go to transaction SE37 (Function Module) and enter the name of the function module.
  Check the attributes of the function module and ensure that it is marked as RFC-compatible. You can do this by checking the "RFC" checkbox in the function module's attributes.
  
  
  
  Review Parameters: 
  
  Ensure that all import and export parameters are compatible with RFC. Avoid using complex data types or structures that cannot be serialized.
  Use simple data types (like CHAR, NUMC, etc.) or tables that are RFC-compatible.
  
  
  
  Modify the Function Module: 
  
  If the function module is not RFC-compatible, you may need to modify it to ensure it meets the RFC requirements. This may involve changing the data types of parameters or restructuring the function logic.
  
  
  
  Check Authorizations: 
  
  Ensure that the user executing the RFC call has the necessary authorizations to call the function module. You can check this in transaction SU53 or by reviewing the user's roles and authorizations.
  
  
  
  Testing: 
  
  After making changes, test the function module again using an RFC call to ensure that the error is resolved.
  
  
  
  Related Information:
  
  RFC (Remote Function Call): A protocol used in SAP to enable communication between different SAP systems or between SAP and non-SAP systems.
  Function Module: A reusable piece of code in SAP that can be called from other programs or function modules.
  Transaction Codes: 
  
  SE37: To view and edit function modules.
  SE80: To view and edit various objects, including function modules.
  SU53: To analyze authorization issues.
  
  
  
  If you continue to experience issues after following these steps, consider consulting SAP documentation or reaching out to SAP support for further assistance.