How To Fix FKK_ID_XX_ODN003 - Doc.class was initialized in the customer-specific function module &1

SAP Error Message - Details

• Message type: E = Error

• Message class: FKK_ID_XX_ODN - ODN message

• Message number: 003

• Message text: Doc.class was initialized in the customer-specific function module &1

What causes this issue?

Document class was initialized in the customer-specific function module.

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?

Review the customer-specific function module and, if necessary, change
the document class.

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 FKK_ID_XX_ODN003 - Doc.class was initialized in the customer-specific function module &1 ?

  The SAP error message FKK_ID_XX_ODN003 typically indicates an issue related to the initialization of a document class in a customer-specific function module. This error is often encountered in the context of SAP Convergent Charging or SAP Contract Accounts Receivable and Payable (FI-CA) when there is a problem with the configuration or implementation of custom logic.
  Cause:
  
  
  Custom Function Module Issue: The error suggests that a customer-specific function module (indicated by &1) is not properly initializing the document class. This could be due to:
  
  Missing or incorrect implementation of the function module.
  The function module is not returning the expected values or structure.
  The document class is not properly defined or configured in the system.
  
  
  
  Configuration Errors: There may be issues in the configuration settings related to document classes or the specific business processes that utilize them.
  
  
  Data Issues: There could be inconsistencies or missing data in the relevant tables that the function module relies on.
  
  
  Solution:
  
  
  Check the Function Module: 
  
  Review the implementation of the customer-specific function module referenced in the error message. Ensure that it is correctly initializing the document class and returning the expected values.
  Debug the function module to identify where the initialization fails.
  
  
  
  Review Configuration:
  
  Check the configuration settings for the document class in the SAP system. Ensure that all necessary settings are correctly defined.
  Verify that the document class is properly linked to the relevant business processes.
  
  
  
  Data Validation:
  
  Ensure that all required data is present and correctly formatted in the relevant tables. This may involve checking master data, transaction data, or configuration tables.
  
  
  
  Consult Documentation: 
  
  Refer to SAP documentation or notes related to the specific function module and document class for any known issues or additional configuration steps.
  
  
  
  SAP Support: If the issue persists after checking the above points, consider reaching out to SAP support for assistance. Provide them with the error message details, the function module name, and any relevant logs or debugging information.
  
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like SE37 (Function Module), SE80 (Object Navigator), or SE11 (Data Dictionary) to investigate the function module and related objects.
  SAP Notes: Search for SAP Notes related to the error message or the specific function module for any patches or updates that may resolve the issue.
  Custom Development: If the function module is custom-developed, ensure that it adheres to best practices for SAP development and is thoroughly tested.
  
  By following these steps, you should be able to identify and resolve the issue causing the FKK_ID_XX_ODN003 error message.