How To Fix FKKINV154 - Invoicing function &1 is not active in invoicing process &2

FKKINV154 - Overview

• Message type: E = Error

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

• Message number: 154

• Message text: Invoicing function &1 is not active in invoicing process &2

trados = fi

What causes this issue?

A <DS:DE.SRCDOCNO_KK>source document</> of the
<DS:DE.SRCDOCCAT_KK>source document category</> &V3& is to be processed
in the <DS:DE.INV_PROCESS_KK>invoicing process</> &V2&. However, the
<DS:DE.INV_FUNCTION_KK>invoicing function</> &V1& required for this is
not active.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

FKKINV154 - Details

• The SAP error message FKKINV154 indicates that the invoicing function specified is not active in the invoicing process you are trying to execute. This error typically arises in the context of SAP Convergent Charging or SAP Contract Accounts Receivable and Payable (FI-CA) when there is an attempt to perform an invoicing operation that is not configured or enabled in the system.
  
  Cause:
  
  Inactive Invoicing Function: The invoicing function you are trying to use is not activated in the configuration settings for the invoicing process.
  
  Configuration Issues: There may be a misconfiguration in the invoicing process settings, leading to the function being unavailable.
  Process Type Not Defined: The invoicing process type may not be defined correctly in the system.
  
  
  Solution:
  
  
  Check Configuration:
  
  Go to the configuration settings for the invoicing process in SAP. You can do this by navigating to the relevant customizing transaction (e.g., SPRO).
  Ensure that the invoicing function you are trying to use is activated for