How To Fix SAP_ACO036 - Function Module &1 Type &2 not allowed with SAP ACO

SAP Error Message - Details

• Message type: E = Error

• Message class: SAP_ACO - SAP ACO Messages

• Message number: 036

• Message text: Function Module &1 Type &2 not allowed with SAP ACO

What causes this issue?

The ABAB DDIC allows fieldnames starting with a number (1-9,0) but such
fieldnames are not supported in structures defined in ABAP classes. As
the SAP ACO creates Proxy Classes, the SAP ACO does not support creation
of Proxies for Function Modules which refers to structures containing
fieldnames starting with a number (1-9,0).

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?

If possible, change the fieldname. If that is not possible, the SAP ACO
cannot be used.

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 SAP_ACO036 - Function Module &1 Type &2 not allowed with SAP ACO ?

  The SAP error message SAP_ACO036 indicates that a specific function module (FM) is not allowed to be used with the SAP Application Communication Object (ACO). This error typically arises when there is an attempt to use a function module that is not compatible with the ACO framework, which is used for communication between different components in SAP.
  Cause:
  
  Incompatible Function Module: The function module you are trying to use is not designed to work with the ACO framework. This could be due to the function module being a standard one that does not support ACO or a custom function module that has not been properly configured.
  Configuration Issues: There may be configuration settings in the ACO that restrict the use of certain function modules.
  Version Mismatch: The version of the SAP system or the ACO framework may not support the function module you are trying to use.
  
  Solution:
  
  Check Function Module Compatibility: Verify if the function module you are trying to use is compatible with ACO. You can do this by checking the documentation or SAP notes related to the function module.
  Use Alternative Function Modules: If the function module is not compatible, look for alternative function modules that provide similar functionality and are compatible with ACO.
  Review ACO Configuration: Check the configuration settings for the ACO to ensure that there are no restrictions on the function modules that can be used.
  Consult SAP Notes: Look for any relevant SAP Notes that might address this specific error or provide guidance on using function modules with ACO.
  Debugging: If you have access to the development environment, you can debug the code to identify where the error is being triggered and understand the context better.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for ACO and the specific function module to understand their compatibility and usage.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered the same issue and what solutions they have found.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if it involves a critical business process.
  
  By following these steps, you should be able to identify the cause of the error and implement a suitable solution.