Message type: E = Error
Message class:  FKKBIX2 - Billing in Contract Accounts Receivable and Payable 
Message number: 412
Message text: Billable Items Excepted: &1
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The SAP error message FKKBIX2412 "Billable Items Excepted: &1" typically occurs in the context of billing and invoicing processes within SAP, particularly when dealing with billable items in the contract accounts receivable and payable (FI-CA) module. This error indicates that there are certain billable items that have been excluded from the billing process.
Cause: The error can be caused by several factors, including: Incorrect Configuration: The billing configuration may not be set up correctly, leading to certain items being marked as non-billable. Status of Billable Items: The items in question may have a status that prevents them from being billed (e.g., they may be marked as "not billable" or "blocked"). Missing Data: Required data for the billable items may be missing or incomplete, which can lead to exceptions during the billing process. Billing Document Issues: There may be issues with the billing document itself, such as incorrect references or missing information.
Solution: To resolve the FKKBIX2412 error, you
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