How To Fix FKKINV593 - Invoicing function &1 is not supported in target process &2

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 593

• Message text: Invoicing function &1 is not supported in target process &2

What causes this issue?

According to your system settings, the <DS:DE.INV_FUNCTION_KK>invoicing
function</> &V1& should be executed as part of the processing of
<DS:DE.INV_PROCESS_KK>invoicing process</> &V3&. However, this is not
supported in <DS:DE.TARGPROCESS_KK>target process</> &V2&.

System Response

The invoicing function &V1& is not executed.

How to fix this error?

To suppress this message, deactivate the invoicing function in the
configuration of invoicing process &V3&.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FKKINV593 - Invoicing function &1 is not supported in target process &2 ?

  The SAP error message FKKINV593 indicates that the invoicing function you are trying to use is not supported in the specified target process. 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 compatible with the current process or configuration.
  Cause:
  
  Incompatible Invoicing Function: The invoicing function you are trying to execute is not designed to work with the target process you are using. This could be due to a mismatch between the invoicing type and the process type.
  Configuration Issues: There may be configuration settings in the system that do not allow the specified invoicing function to be executed in the current context.
  Process Restrictions: Certain processes may have restrictions on the types of invoicing functions that can be executed, leading to this error.
  
  Solution:
  
  Check Configuration: Review the configuration settings for the invoicing function and the target process. Ensure that the invoicing function is supported for the specific process you are working with.
  Use Supported Functions: If the invoicing function is not supported, consider using an alternative function that is compatible with the target process.
  Consult Documentation: Refer to the SAP documentation or help resources for the specific invoicing function and target process to understand the limitations and supported functionalities.
  Contact SAP Support: If you are unable to resolve the issue through configuration or by using alternative functions, consider reaching out to SAP support for assistance. They may provide insights specific to your system configuration or version.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in troubleshooting or configuring invoicing functions (e.g., transaction codes related to FI-CA or Convergent Charging).
  SAP Notes: Search for SAP Notes related to FKKINV593 or the specific invoicing function you are trying to use. SAP Notes often contain fixes, workarounds, or additional information about known issues.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed. Other users may have encountered the same error and can share their solutions.
  
  By following these steps, you should be able to identify the cause of the error and implement a suitable solution.