How To Fix FF829 - Cash discount not allowed due to differing calculation rules &1 &2

SAP Error Message - Details

• Message type: E = Error

• Message class: FF - FI Function Module Messages

• Message number: 829

• Message text: Cash discount not allowed due to differing calculation rules &1 &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message FF829 - Cash discount not allowed due to differing calculation rules &1 &2 ?

  The SAP error message FF829, which states "Cash discount not allowed due to differing calculation rules &1 &2," typically occurs in the context of financial transactions, particularly when dealing with cash discounts in accounts payable or receivable. This error indicates that there is a mismatch in the calculation rules for cash discounts between the invoice and the payment or between different components of the transaction.
  Cause:
  
  Different Calculation Rules: The error arises when the cash discount calculation rules defined in the vendor master data or customer master data do not match the rules applied in the invoice or payment document.
  Configuration Issues: There may be inconsistencies in the configuration settings for cash discounts in the SAP system, such as different discount percentages or terms.
  Document Type Differences: The document types used for the invoice and payment may have different settings regarding cash discounts.
  Currency Differences: If the invoice and payment are in different currencies, it may lead to discrepancies in cash discount calculations.
  
  Solution:
  
  Check Master Data: Review the vendor or customer master data to ensure that the cash discount terms are consistent. Look for any discrepancies in the cash discount percentage or terms.
  Review Configuration: Check the configuration settings in the SAP system for cash discounts. This includes verifying the settings in the following areas:
  
  Transaction Codes: Use transaction codes like OBB8 (for payment terms) and OBBP (for document types) to review and adjust settings.
  Calculation Rules: Ensure that the calculation rules for cash discounts are aligned across all relevant documents.
  
  
  Document Type Settings: Ensure that the document types used for the invoice and payment have the same cash discount settings.
  Currency Consistency: If applicable, ensure that the currency used in the invoice and payment is the same or that the conversion rates are correctly applied.
  Consult SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on configuration settings.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes related to cash discount settings, such as OBB8 (Define Payment Terms) and OBBP (Define Document Types).
  SAP Help Documentation: Refer to the official SAP documentation for detailed information on cash discount configuration and troubleshooting.
  User Forums and Communities: Engage with SAP user communities or forums for shared experiences and solutions from other users who may have encountered the same error.
  
  By following these steps, you should be able to identify the cause of the error and implement the necessary changes to resolve it.