How To Fix C0656 - System error when accessing function module &

SAP Error Message - Details

• Message type: E = Error

• Message class: C0 - PP-PI: Messages for PI Sheet and Syntax Checker

• Message number: 656

• Message text: System error when accessing function module &

What causes this issue?

An error occurred when accessing function module &V1&.
INCLUDE 'NA_FU_NO' OBJECT DOKU ID TX LANGUAGE EN

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?

INCLUDE 'NA_SYSVERW' OBJECT DOKU ID TX LANGUAGE EN
INCLUDE 'NA_SYSVW_HINW' OBJECT DOKU ID TX LANGUAGE EN
Possible reasons why the error occured:
Basis function FUNCTION_IMPORT_INTERFACE was terminated with exception
ERROR_MESSAGE.
Basis function SFCS_FA_FUNCTION_INVOCE was terminated with exception
GENERATION_ERROR.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message C0656 - System error when accessing function module & ?

  The SAP error message C0656, which indicates a "System error when accessing function module &," typically arises when there is an issue with the function module being called in the SAP system. This error can occur due to various reasons, including:
  Causes:
  
  Function Module Issues: The function module may not exist, may be incorrectly defined, or may have been deactivated.
  Authorization Problems: The user may not have the necessary authorizations to execute the function module.
  Transport Issues: If the function module was recently transported from another system, there may be inconsistencies or missing dependencies.
  System Configuration: There may be configuration issues in the SAP system that prevent the function module from being accessed.
  Database Issues: Problems with the underlying database, such as connectivity issues or corruption, can also lead to this error.
  Memory Issues: Insufficient memory or resources on the application server can cause this error.
  
  Solutions:
  
  Check Function Module: Verify that the function module exists and is active. You can do this by using transaction SE37 (Function Builder) to check the status of the function module.
  Review Authorizations: Ensure that the user has the necessary authorizations to execute the function module. You can check this using transaction SU53 to analyze authorization failures.
  Transport Check: If the function module was recently transported, check the transport logs for any errors or warnings. Ensure that all dependencies are also transported.
  System Logs: Review the system logs (transaction SM21) and short dump analysis (transaction ST22) for any related errors that might provide more context.
  Database Connection: Check the database connection and ensure that the database is running properly. You can use transaction DBACOCKPIT to monitor database performance and issues.
  Memory and Resources: Monitor the system's memory and resource usage. If the system is low on resources, consider increasing the available memory or optimizing the workload.
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  Transaction Codes: SE37 (Function Builder), SU53 (Authorization Check), SM21 (System Log), ST22 (Dump Analysis), DBACOCKPIT (Database Monitoring).
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to the function module or error message.
  Documentation: Review the documentation for the specific function module to understand its requirements and dependencies.
  
  By following these steps, you should be able to diagnose and resolve the C0656 error in your SAP system.