3788529 - Error M8485 “Cash Discount Amount Cannot Be posted” When Posting Supplier Invoice In Manage Supplier Invoices (f0859) App — SAP S/4Hana Cloud Public Edition

• When posting a supplier invoice in Manage Supplier Invoices (F0859), the document cannot be posted.
• Error: “Cash discount amount cannot be posted: see the long text” (Message no. M8485).
• German variant: “Skontobetrag nicht buchbar: Beachten Sie den Langtext”.
• The message long text typically mentions these situations: a purchase order containing only return items, or one document mixing invoice (debit) items with credit‑memo/return (credit) items where cash‑discount‑eligible amounts differ.

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

1. Open the Create Supplier Invoice tile and go to the Manage Supplier Invoices app (F0859).
2. Enter a supplier invoice that either references only return items or mixes invoice (debit) items with credit‑memo/return (credit) items.
3. Attempt to post the document.
4. Observe error M8485: “Cash discount amount cannot be posted: see the long text”.

• A single document attempts to handle both normal (debit) items and returns/credit (credit) items.
• Cash discount can only be applied in one direction within a single document.
• Because discount‑eligible amounts differ between the debit and credit sides, applying a discount would require an inconsistent sign; the system blocks posting by design.

1. Delete any saved but not posted (parked) version of the mixed document to prevent duplicates.
2. Create a credit memo for the returned items only.
3. Create a separate supplier invoice for the normal (debit) items only.
4. Post both documents within the same accounting period to keep balances consistent.
5. Before posting the credit memo, ensure the goods return has been recorded and verify that no automatic invoicing is already settling the return.
6. Use Simulate for each document and then post; both should post without error.
7. Prevent recurrence by handling supplier returns through a dedicated returns process and avoiding mixing returns and normal items on the same document.

• Refer to: Note/KBA 2048528
• Refer to: Note/KBA 2537926
• Refer to: Note/KBA 3716461
• Refer to: Note/KBA 3596511
• Refer to: Note/KBA 2839034
• Refer to: SAP Note 381495
• Refer to: KBA 3784726
• Refer to: KBA 3265568

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