Message type: E = Error
Message class:  FKK_ID_XX_SAFT - SAFT message 
Message number: 003
Message text: Function module &1 not yet defined
Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.
To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.
Unfortunately, there isn't any extra information in this error notice.
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The SAP error message FKK_ID_XX_SAFT003 typically indicates that a function module required for processing a specific operation in the SAP system is not defined or is missing. This error is often related to the SAP Convergent Charging (SAP CC) or SAP Convergent Invoicing (SAP CI) modules, particularly in the context of handling billing and invoicing processes.
Cause: Missing Function Module: The function module referenced in the error message (&1) is not defined in the system. This could be due to a missing implementation or an incomplete installation of the relevant SAP components.
Configuration Issues: There may be configuration settings that are not properly set up, leading to the system being unable to find the required function module. Transport Issues: If the system has recently undergone a transport of changes, the function module may not have been included or properly activated in the target system. Version Compatibility: The error may arise if there are compatibility issues
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