How To Fix WU128 - Planned sales volume cannot be less than 0

WU128 - Overview

• Message type: E = Error

• Message class: WU - Promotion management messages

• Message number: 128

• Message text: Planned sales volume cannot be less than 0

What causes this issue?

A negative value was entered when planning the total sales volume
of the promotion. You cannot have negative sales volumes.

How to fix this error?

Enter the correct value.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WU128 - Planned sales volume cannot be less than 0 ?

  The SAP error message WU128, which states "Planned sales volume cannot be less than 0," typically occurs in the context of sales and operations planning or when dealing with sales forecasts in SAP. This error indicates that there is an attempt to enter a planned sales volume that is negative, which is not permissible in the system.
  
  Cause:
  
  Negative Input: The most common cause is that a user has inadvertently entered a negative value for planned sales volume in a planning transaction or report.
  Data Transfer Issues: If data is being transferred from another system or module, there may be an issue with the data mapping or transformation that results in negative values being sent to the sales planning module.
  Incorrect Configuration: There may be configuration settings in the planning module that do not allow for negative values, which could be due to business rules or settings in the planning strategy.
  
  
  Solution:
  
  Check Input Values: Review