3805622 - Invoice reversal or credit memo blocked with 'Moving Average Price would become negative' after wrong currency posting — SAP S/4HANA Cloud Public Edition

• A supplier invoice was posted using the wrong currency, which inflated material value and the moving average price (MAP).
• Attempting to cancel the supplier invoice shows error: “Moving Average Price would become negative.”
• Posting a credit memo to adjust the invoice triggers the same error.
• Error code: M8783.

• SAP S/4HANA Cloud Public Edition
• Fiori UI for Invoice Verification (Public Cloud)

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