How To Fix FKKINV395 - Main/subtransaction in billing document item &1 not allowed to be initial

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 395

• Message text: Main/subtransaction in billing document item &1 not allowed to be initial

What causes this issue?

In <DS:DE.BILLDOCITEM_KK>billing document item</> &v1&, the
<DS:DE.HVORG_KK>main transaction</>/<DS:DE.TVORG_KK>subtransaction</> is
not entered. This is not allowed for billing document items that are
<DS:DE.POSTREL_KK>relevant for posting</> or that contain a
<DS:DE.PRINT_SUBSTITUTE_KK>substitute group for invoice printing</>.

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message FKKINV395 - Main/subtransaction in billing document item &1 not allowed to be initial ?

  The SAP error message FKKINV395 indicates that there is an issue with the billing document item in the context of the contract accounts receivable and payable (FI-CA) module. Specifically, the error states that the main or subtransaction in the billing document item cannot be initial (i.e., it cannot be empty).
  Cause:
  This error typically occurs due to one of the following reasons:
  
  Missing Transaction Data: The billing document item is missing a main or subtransaction code, which is required for processing.
  Configuration Issues: The configuration settings for the billing document type may not be set up correctly, leading to the requirement for a transaction code that is not being provided.
  Data Entry Errors: There may have been an error during data entry or data migration that resulted in the transaction fields being left blank.
  
  Solution:
  To resolve the FKKINV395 error, you can take the following steps:
  
  
  Check Billing Document Item:
  
  Go to the billing document in question and check the item details.
  Ensure that both the main transaction and subtransaction fields are populated with valid values.
  
  
  
  Review Configuration:
  
  Check the configuration settings for the billing document type in the SAP system.
  Ensure that the main and subtransaction settings are correctly defined and that they are not set to be optional if they are required.
  
  
  
  Data Validation:
  
  If the error occurred during data migration or data entry, validate the data to ensure that all required fields are filled out correctly.
  If necessary, correct the data in the relevant tables or through the appropriate transaction codes.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help notes related to billing document processing in FI-CA to understand the requirements for main and subtransactions.
  
  
  
  Contact Support:
  
  If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting with SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as FB70 (for billing documents) and FBL5N (for customer line items) to help in troubleshooting.
  SAP Notes: Search for SAP Notes related to FKKINV395 for any specific patches or updates that may address this issue.
  FI-CA Documentation: Review the FI-CA module documentation for detailed information on billing document processing and transaction management.
  
  By following these steps, you should be able to identify and resolve the cause of the FKKINV395 error in your SAP system.