How To Fix M8129 - Account & & for deductions/cash discounts cannot be tax relevant

M8129 - Overview

• Message type: E = Error

• Message class: M8 - Invoice Verification/Valuation

• Message number: 129

• Message text: Account & & for deductions/cash discounts cannot be tax relevant

What causes this issue?

The system is trying to automatically post cash discount deductions or
unauthorized deductions to account &V1&. In company code &V2&, no tax
adjustment is defined for deductions of this kind (Customizing for
Financial Accounting is configured so that the net amount is the basis
for the cash discount). In this case, the account to which the posting
is made must not be tax-relevant.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Either your system administrator corrects the configuration.

<DS:TRAN.OB70>Proceed</>

or you correct the master data for account &V1&.

<DS:TRAN.FS02>Proceed</>

Error message extract from SAP system. Copyright SAP SE.

M8129 - Details

• The SAP error message M8129 indicates that there is an issue with the configuration of account determination for deductions or cash discounts in relation to tax relevance. This error typically arises when the system is unable to determine the appropriate accounts for posting deductions or cash discounts that are supposed to be tax-relevant.
  
  Cause:
  
  Account Configuration: The accounts configured for deductions or cash discounts may not be set up to be tax-relevant. This can happen if the account type or the account settings do not allow for tax calculations.
  Master Data Issues: The vendor or customer master data may not have the correct tax classification or settings that align with the account determination.
  Tax Code Issues: The tax codes used in the transaction may not be compatible with the accounts being used for deductions or cash discounts.
  Transaction Type: The type of transaction being processed may not support tax relevance for deductions or cash discounts.
  
  
  Solution:
  
  
  Check