How To Fix M8108 - Check if invoice already entered under journal entry & &

SAP Error Message - Details

• Message type: E = Error

• Message class: M8 - Invoice Verification/Valuation

• Message number: 108

• Message text: Check if invoice already entered under journal entry & &

What causes this issue?

The system is required to perform a check to prevent duplication of
invoice entry for the supplier whose invoice you are currently entering.
An invoice with data that corresponds to your data for the following
fields has already been entered in accounting numbered &V1&:
Company Code
Document Date
Reference
Currency
Supplier
Amount
It is likely that the same invoice will be entered twice.

INCLUDE MM_IV_MELDUNGEN OBJECT DOKU ID TX

How to fix this error?

Check your input and correct it if necessary. If your input is correct,
compare the current invoice with the original document of invoice &V1&.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M8108 - Check if invoice already entered under journal entry & & ?

  The SAP error message M8108 typically indicates that there is an issue with the invoice processing in the system, specifically that the invoice you are trying to enter may already exist in the system under a journal entry. This can happen for various reasons, such as duplicate entries or issues with the invoice number.
  Cause:
  
  Duplicate Invoice: The invoice you are trying to enter may already exist in the system. SAP checks for duplicate entries to prevent double posting.
  Incorrect Invoice Number: The invoice number you are entering might be incorrect or formatted improperly.
  Posting Period Issues: The posting period may be closed, preventing new entries from being made.
  Configuration Issues: There may be configuration settings in the system that are causing the error.
  
  Solution:
  
  
  Check for Existing Invoices: 
  
  Use transaction codes like FB03 (Display Document) or MIRO (Enter Incoming Invoice) to check if the invoice has already been entered.
  Search for the invoice number in the system to confirm if it exists.
  
  
  
  Verify Invoice Number: 
  
  Ensure that the invoice number you are entering is correct and matches the format expected by the system.
  
  
  
  Review Posting Period: 
  
  Check if the posting period is open. You can do this using transaction code OB52 to see the open and closed periods.
  
  
  
  Consult with Finance Team: 
  
  If you suspect that the invoice should not be a duplicate, consult with your finance or accounting team to verify the status of the invoice.
  
  
  
  Check Configuration: 
  
  If the issue persists, it may be necessary to check the configuration settings related to invoice processing in SAP. This may require assistance from an SAP consultant or your IT department.
  
  
  
  Use Transaction Codes: 
  
  Use transaction codes like MR8M (Cancel Invoice Document) if you need to reverse a duplicate entry.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Documentation: Review SAP documentation for invoice processing to ensure compliance with best practices.
  User Training: Ensure that users entering invoices are trained on the correct procedures to minimize errors.
  
  If the problem persists after following these steps, it may be necessary to escalate the issue to your SAP support team for further investigation.