How To Fix M8485 - Cash discount amount cannot be posted. See long text

M8485 - Overview

• Message type: E = Error

• Message class: M8 - Invoice Verification/Valuation

• Message number: 485

• Message text: Cash discount amount cannot be posted. See long text

What causes this issue?

The following situations could have led to this error:
Situation 1:
You want to settle a purchase order that contains only returns items.
Since these items are posted as credits, you must settle them as a
credit memo using the transaction MIRO. However, you have used the
transaction MIRO and posted an invoice document.
Situation 2:
You entered either an invoice or a credit memo containing items to be
debited (=invoice items) and items to be credited (=credit memo items).
If you are entering a credit memo, the following situation has
occurred:
The amount eligible for cash discount in the relevant invoice items (
&V1& &V3&) is larger than the amount in the relevant credit memo items
(&V2& &V3&). This means that a negative amount is posted as the cash
discount amount.
If you are entering an invoice, the following situation has occurred:
The amount eligible for cash discount in the relevant credit memo items
(&V2& &V3&) is larger than the amount in the relevant invoice items (
&V1& &V3&) This means that a positive amount is posted as the cash
discount.

System Response

Situation 1:
The system is not able to settle the purchase order.
Situation 2:
If you are entering a credit memo:
The system cannot post a negative cash discount amount.
If you are entering an invoice:
The system cannot post a positive cash discount amount.

How to fix this error?

Situation 1:
Exit the current transaction.
Enter and post the purchase order using the credit memo transaction in
transaction MIRO.
Note that you must settle the returns items as credit memo items.
Select this option in <LS>More allocation criteria</>.
Situation 2:
Exit the current transaction. (If you have already saved the invoice or
credit memo, delete it.)
Enter and post the credit memo and the invoice separately; note the
following when doing this:
Only assign items to be credited to the credit memo.
Only assign items to be debited to the invoice.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M8485 - Cash discount amount cannot be posted. See long text ?

  The SAP error message M8485, which states "Cash discount amount cannot be posted. See long text," typically occurs in the context of materials management and financial transactions when there is an issue with the cash discount amount being processed in a transaction. Here’s a breakdown of the potential causes, solutions, and related information for this error:
  Causes:
  
  
  Incorrect Configuration: The cash discount settings in the system may not be configured correctly. This includes settings related to the discount percentage, validity periods, or account determination.
  
  
  Posting Period Issues: The posting period may be closed, preventing any new postings, including cash discounts.
  
  
  Document Type Restrictions: The document type being used may not allow for cash discount postings.
  
  
  Incomplete Master Data: Vendor or customer master data may be incomplete or incorrect, particularly in relation to payment terms.
  
  
  Transaction Type Limitations: Certain transaction types may not support cash discounts, leading to this error.
  
  
  Currency Issues: If there are discrepancies in currency