How To Fix M8690 - Only one supplier line allowed when reducing individual items in invoices

SAP Error Message - Details

• Message type: E = Error

• Message class: M8 - Invoice Verification/Valuation

• Message number: 690

• Message text: Only one supplier line allowed when reducing individual items in invoices

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message M8690 - Only one supplier line allowed when reducing individual items in invoices ?

  The SAP error message M8690, which states "Only one supplier line allowed when reducing individual items in invoices," typically occurs during the invoice verification process in SAP when you attempt to reduce the quantity or value of individual items on an invoice that has multiple supplier lines. This restriction is in place to maintain data integrity and ensure that the invoice processing aligns with the supplier's billing structure.
  Cause:
  The error is triggered when:
  
  You are trying to reduce the quantity or value of items on an invoice that has multiple supplier lines.
  The system is designed to allow only one supplier line for reductions to avoid confusion and ensure that the invoice matches the supplier's original billing.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Invoice Structure: Review the invoice to ensure that it is structured correctly. If there are multiple supplier lines, you may need to consolidate them into a single line if applicable.
  
  
  Adjust Invoice Items: If you need to reduce quantities or values, consider doing so on a single supplier line. You may need to create a new invoice or adjust the existing one to comply with this requirement.
  
  
  Use the Correct Transaction: Ensure that you are using the correct transaction code for invoice verification. If you are using a transaction that allows for multiple supplier lines, switch to one that supports single supplier line adjustments.
  
  
  Consult Documentation: Refer to SAP documentation or your organization's SAP guidelines for handling invoice reductions. There may be specific procedures in place for your organization.
  
  
  Contact Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or a consultant who can provide assistance based on your specific configuration and business processes.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this error or provide additional context on handling invoice reductions.
  User Training: Ensure that users involved in invoice processing are trained on the limitations and procedures for handling supplier lines in SAP.
  System Configuration: Review the configuration settings in your SAP system related to invoice processing and supplier management to ensure they align with your business needs.
  
  By following these steps, you should be able to address the M8690 error and proceed with the invoice processing in SAP.