How To Fix SE464 - Negative quantities not allowed in service-based invoice verification

SAP Error Message - Details

• Message type: E = Error

• Message class: SE - Dienstleistungen Stammdaten Leistungsposition

• Message number: 464

• Message text: Negative quantities not allowed in service-based invoice verification

Self-Explanatory Message

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• What is the cause and solution for SAP error message SE464 - Negative quantities not allowed in service-based invoice verification ?

  The SAP error message SE464 "Negative quantities not allowed in service-based invoice verification" typically occurs during the invoice verification process in SAP when you are trying to process an invoice that contains negative quantities for service-based items. This is a validation error that prevents the posting of the invoice because negative quantities are not permissible in this context.
  Cause:
  
  Negative Quantity Entry: The most common cause is that the invoice being processed has line items with negative quantities. This can happen if there was an error in data entry or if the invoice is meant to reverse a previous invoice but is not set up correctly.
  Service-Based Invoice: The error specifically pertains to service-based invoices, which are typically linked to service purchase orders. In this case, the system expects positive quantities for services rendered.
  Configuration Issues: There may be configuration settings in the system that do not allow negative quantities for certain types of transactions.
  
  Solution:
  
  Check Invoice Details: Review the invoice line items to ensure that all quantities are positive. If you intended to reverse a service, you may need to create a credit memo instead of a standard invoice.
  Correct Data Entry: If the negative quantity was entered by mistake, correct it to a positive value and try posting the invoice again.
  Use Credit Memos: If you need to account for a return or a reduction in services, consider using a credit memo instead of a standard invoice. This is the appropriate method for handling reductions in service quantities.
  Consult Configuration: If you believe that negative quantities should be allowed in your business process, consult with your SAP configuration team to review the settings related to invoice verification and service procurement.
  
  Related Information:
  
  SAP Documentation: Refer to SAP Help documentation for more details on invoice verification processes and handling service-based invoices.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MIRO (Invoice Verification) and ME23N (Display Purchase Order) to review the associated documents.
  User Exits and BAdIs: If your organization has specific business requirements, consider checking for any user exits or Business Add-Ins (BAdIs) that might be influencing the behavior of invoice processing.
  
  If the issue persists after checking these aspects, it may be beneficial to engage with your SAP support team or consult SAP Notes for any known issues or patches related to this error message.