How To Fix W0129 - The sum of the 3 fields for coupon discount must equal 100

SAP Error Message - Details

• Message type: E = Error

• Message class: W0 - Customizing - ISR

• Message number: 129

• Message text: The sum of the 3 fields for coupon discount must equal 100

Self-Explanatory Message

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• What is the cause and solution for SAP error message W0129 - The sum of the 3 fields for coupon discount must equal 100 ?

  SAP Error Message:
  
  W0129 - The sum of the 3 fields for coupon discount must equal 100
  
  Cause:
  This warning message occurs when you are entering or maintaining coupon discount data in SAP (typically in SD - Sales and Distribution or related modules), and the sum of the three percentage fields related to coupon discounts does not add up to exactly 100%.
  In many SAP scenarios involving coupon discounts, the system expects the distribution of the discount across three components (for example, different discount types or categories) to total 100%. If the sum is less than or greater than 100%, the system issues this warning to ensure data consistency and correct discount calculation.
  
  Explanation:
  
  The three fields usually represent the distribution of the total coupon discount into parts (e.g., discount to customer, discount to sales organization, discount to vendor).
  The system requires that these three parts add up to 100% to correctly allocate the discount.
  If the sum is not 100%, the system cannot properly calculate or apply the discount.
  
  
  Solution:
  
  
  Check the values entered in the three coupon discount fields.
  
  Ensure that the sum of these three percentage values equals exactly 100%.
  
  
  Adjust the values accordingly:  
  
  If the sum is less than 100%, increase one or more of the fields so that the total reaches 100%.  
  If the sum is more than 100%, reduce one or more of the fields accordingly.
  
  
  
  Save the data again after correction.
  
  
  If the fields are maintained via a custom program or interface, verify the logic that calculates or distributes the discount percentages to ensure it always results in a total of 100%.
  
  
  
  Additional Information:
  
  This message is a warning (W), not an error (E), so it may allow you to proceed but advises correction.
  The exact fields and their meaning can vary depending on the SAP module and configuration.
  This message is often encountered in pricing procedures, condition records, or rebate agreements where coupon discounts are split.
  If you are unsure which fields correspond to the three discount parts, check the configuration or the screen where you enter the coupon discount data.
  In some cases, this message can be customized or suppressed via message control if business processes allow.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Message
  W0129 - The sum of the 3 fields for coupon discount must equal 100
  
  
  Cause
  Sum of three coupon discount percentage fields ? 100%
  
  
  Solution
  Adjust the three fields so their sum equals exactly 100%
  
  
  Type
  Warning (data consistency check)
  
  
  Module
  Typically SD (Sales and Distribution) or Pricing/Rebate
  
  
  
  
  If you need help identifying the exact fields or customizing the message behavior, please provide the transaction code or module context where this message appears.