How To Fix FKKINV104 - Invoicing function &1 is unknown or invalid in application &2

FKKINV104 - Overview

• Message type: E = Error

• Message class: FKKINV - Invoicing in Contract Accounts Receivable and Payable

• Message number: 104

• Message text: Invoicing function &1 is unknown or invalid in application &2

Self-Explanatory Message

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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.

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FKKINV104 - Details

• The SAP error message FKKINV104 indicates that there is an issue with the invoicing function specified in the system. The message states that the invoicing function (&1) is either unknown or invalid in the specified application (&2). This error typically occurs in the context of the Contract Accounts Receivable and Payable (FI-CA) module.
  
  Cause:
  
  Invalid Function Code: The invoicing function code provided does not exist in the system or is not correctly configured.
  
  Configuration Issues: The invoicing function may not be properly set up in the customizing settings of the FI-CA module.
  Missing Authorizations: The user may not have the necessary authorizations to access the specified invoicing function.
  Incorrect Application Context: The invoicing function may not be applicable to the specified application context.
  
  
  Solution:
  
  Check Function Code: Verify that the invoicing function code (&1) is correctly entered and exists in the system. You can do this by checking the configuration settings in the FI-CA module.
  Review Customizing Settings: