How To Fix FKKINV177 - Internal error: Invoice amount does not correspond to amount to be posted

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 177

• Message text: Internal error: Invoice amount does not correspond to amount to be posted

trados = fi

What causes this issue?

During an internal check of the invoicing document to be created, the
system determined a difference between the amount to be displayed in the
invoice and the amount to be posted.

System Response

Invoicing is terminated.

How to fix this error?

One of the billing documents to be processed is possibly inconsistent or
this is a program error.

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

INCLUDE NA_SYSADMIN1 OBJECT DOKU ID TX

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 FKKINV177 - Internal error: Invoice amount does not correspond to amount to be posted ?

  The SAP error message FKKINV177, which states "Internal error: Invoice amount does not correspond to amount to be posted," typically occurs in the context of invoicing within the SAP Convergent Charging or Contract Accounts Receivable and Payable (FI-CA) modules. This error indicates a mismatch between the invoice amount and the amount that the system expects to post.
  Causes:
  
  Data Inconsistency: There may be inconsistencies in the data related to the invoice, such as incorrect amounts in the invoice header or line items.
  Configuration Issues: Incorrect configuration settings in the FI-CA module can lead to discrepancies in the expected amounts.
  Manual Adjustments: If manual adjustments were made to the invoice after it was created, this could lead to a mismatch.
  Currency Issues: If there are currency conversions involved, discrepancies can arise if the exchange rates are not correctly applied.
  Incomplete Document: The invoice document may not have been fully processed or may be missing required information.
  
  Solutions:
  
  Check Invoice Data: Review the invoice details to ensure that the amounts in the header and line items are consistent and correct.
  Review Configuration: Check the configuration settings in the FI-CA module to ensure that they are set up correctly for the invoicing process.
  Recreate the Invoice: If the invoice is found to be corrupted or incorrect, consider deleting and recreating it.
  Check for Manual Changes: Investigate any manual changes made to the invoice after its creation and ensure they are valid.
  Currency Settings: Verify that the currency settings and exchange rates are correctly configured and applied.
  Consult Logs: Check the application logs (transaction SLG1) for more detailed error messages that may provide additional context for the issue.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like FPL9 (Display Document) or FPL1 (Create Invoice) to review and manage invoices.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide patches and updates.
  Documentation: Review the SAP documentation for FI-CA and invoicing processes to ensure compliance with best practices.
  Support: If the issue persists, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  By following these steps, you should be able to identify the root cause of the FKKINV177 error and implement a solution to resolve it.