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.

Unfortunately, there isn't any extra information in this error notice.

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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