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

SAP Error Message - Details

• 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message WU350 - Mass maintenance not possible without +/- sign ?

  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. Ensure that all relevant fields that require a +/- sign are correctly filled out.
  
  
  Use the Correct Format: When entering values for mass maintenance, make sure to follow the required format. For example, if you are increasing a quantity, you should enter it as a positive number, and for a decrease, enter it as a negative number.
  
  
  Review Documentation: Consult the SAP documentation or help files related to the specific transaction or module you are working with. This can provide insights into the required fields and formats.
  
  
  Test with Sample Data: If possible, test your mass maintenance process with a small set of data to ensure that the +/- signs are being recognized correctly before applying it to a larger dataset.
  
  
  Consult with SAP Support: If you continue to experience issues, consider reaching out to your SAP support team or consulting SAP Notes for any known issues or patches related to this error.
  
  
  Related Information:
  
  Transaction Codes: The error may occur in various transaction codes related to mass maintenance, such as MM17 (Mass Maintenance of Material Master), MASS (Mass Maintenance), or others depending on the context.
  SAP Notes: Check SAP Notes for any updates or specific fixes related to this error message.
  User Permissions: Ensure that you have the necessary permissions to perform mass maintenance activities, as restrictions can sometimes lead to unexpected errors.
  
  By following these steps, you should be able to resolve the WU350 error and successfully perform your mass maintenance tasks in SAP.