How To Fix EC326 - Internal error: Unknown function type &1

SAP Error Message - Details

• Message type: E = Error

• Message class: EC - Development environment: Menu Painter

• Message number: 326

• Message text: Internal error: Unknown function type &1

What causes this issue?

Erroneous function module call

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?

Inform SAP

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 EC326 - Internal error: Unknown function type &1 ?

  The SAP error message EC326, which states "Internal error: Unknown function type &1," typically indicates that there is an issue with the configuration or execution of a function module or a related process in the SAP system. This error can arise in various contexts, such as during the execution of a program, report, or transaction that involves function modules.
  Possible Causes:
  
  Incorrect Function Type: The function type being referenced may not be defined or recognized in the system. This could be due to a typo or an incorrect configuration.
  Missing or Inactive Function Module: The function module that is supposed to handle the specified function type may be missing or inactive.
  Custom Development Issues: If there are custom developments or enhancements, they may not be correctly implemented, leading to this error.
  Transport Issues: If the function module was recently transported from another system, it may not have been properly imported or activated.
  System Bugs: There may be bugs in the SAP system or specific patches that need to be applied.
  
  Solutions:
  
  Check Function Type: Verify the function type being used in the program or transaction. Ensure that it is correctly defined and spelled.
  Review Function Modules: Check if the relevant function module exists and is active. You can do this by using transaction SE37 (Function Builder) to search for the function module.
  Debugging: If you have access to debugging tools, you can set breakpoints in the code to identify where the error is occurring and what function type is being passed.
  Check Custom Code: If the error is occurring in custom code, review the implementation for any mistakes or inconsistencies.
  Transport Management: If the issue arose after a transport, ensure that all necessary objects were transported correctly and are active in the target system.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide patches.
  System Logs: Check the system logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  
  Related Information:
  
  SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including the context in which it occurs.
  Documentation: Review SAP documentation related to the specific function module or process you are working with to ensure that you are following the correct procedures.
  
  By following these steps, you should be able to identify the cause of the EC326 error and implement a suitable solution.