How To Fix WU350 - Mass maintenance not possible without +/- sign

WU350 - Overview

• Message type: E = Error

• Message class: WU - Promotion management messages

• Message number: 350

• Message text: Mass maintenance not possible without +/- sign

What causes this issue?

Mass maintenance is only possible if you enter a plus or minus sign for
the amount or percentage.

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?

Procedure for System Administrators

Enter the required plus or minus sign (+/-) for mass maintenance.

Error message extract from SAP system. Copyright SAP SE.

WU350 - Details

• The SAP error message WU350, which states "Mass maintenance not possible without +/- sign," typically occurs in the context of mass changes or mass maintenance activities in SAP, particularly when dealing with data that requires a clear indication of whether a value is being increased or decreased.
  
  Cause:
  The error arises when you attempt to perform mass maintenance on certain data records (like pricing, inventory, etc.) without specifying whether the change is an addition (+) or a subtraction (-). This is crucial for SAP to understand how to apply the changes correctly. For example, if you are trying to adjust quantities or prices, SAP needs to know if you are increasing or decreasing those values.
  
  Solution:
  To resolve this error, you should ensure that you include the appropriate +/- sign in your mass maintenance input. Here are the steps you can take:
  
  
  Check Input Data: Review the data you are trying to upload or modify.