How To Fix FKK_ID_XX_ODN049 - Unknown doc.class &1 was set in the customer-specific function module &2

FKK_ID_XX_ODN049 - Overview

• Message type: E = Error

• Message class: FKK_ID_XX_ODN - ODN message

• Message number: 049

• Message text: Unknown doc.class &1 was set in the customer-specific function module &2

Self-Explanatory Message

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FKK_ID_XX_ODN049 - Details

• The SAP error message FKK_ID_XX_ODN049 indicates that there is an issue with a document class that is not recognized in the context of a customer-specific function module. This typically occurs in the context of SAP Convergent Charging or SAP Contract Accounts Receivable and Payable (FI-CA) when processing documents related to billing or invoicing.
  
  Cause:
  
  Unknown Document Class: The document class specified in the function module is not defined in the system. This could be due to a typo, a missing configuration, or an incorrect implementation of the function module.
  Custom Development Issues: If there are custom developments or enhancements in the system, the function module may not be correctly handling the document class.
  
  Configuration Issues: The document class may not be properly configured in the system settings, leading to it being unrecognized.
  
  
  Solution:
  
  
  Check Document Class Configuration:
  
  Go to the configuration settings for document classes in the relevant module (e.g., FI-CA).
  Ensure that the document class mentioned in