How To Fix W4401 - &: & forecase values with MRP areas were deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: W4 - Messages for material discontinuation

• Message number: 401

• Message text: &: & forecase values with MRP areas were deleted

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message W4401 - &: & forecase values with MRP areas were deleted ?

  SAP Error Message:
  
  W4401: "&: & forecast values with MRP areas were deleted"
  
  Meaning / Cause:
  This warning message indicates that forecast values for a material, which were maintained specifically for certain MRP areas, have been deleted. The placeholders (&) typically represent the material number and possibly the MRP area or other relevant data.
  In SAP, forecast values can be maintained either at the plant level or at the MRP area level (if MRP areas are used). When forecast values assigned to MRP areas are deleted (either manually or via a program), this warning is issued to inform the user that the forecast data for those MRP areas no longer exists.
  Common causes:
  
  Manual deletion of forecast data for MRP areas.
  Running a forecast deletion program or transaction that removes forecast values.
  Data inconsistency or cleanup activities.
  Changes in MRP area configuration or master data leading to deletion of associated forecast data.
  
  
  Solution / How to handle:
  
  Check if deletion was intentional: Verify whether the forecast values were deleted on purpose. If yes, no further action is needed other than acknowledging the warning.
  Restore forecast data if needed: If the deletion was accidental or forecast data is still required, restore the forecast values from backup or re-enter the forecast data for the affected MRP areas.
  Review MRP area settings: Ensure that MRP areas are correctly configured and active. Sometimes, changes in MRP area setup can cause forecast data to be deleted.
  Check related master data: Verify material master and MRP area assignments to ensure consistency.
  Run forecast planning again: After restoring or correcting forecast data, run the forecast planning or MRP run to generate updated planning data.
  
  
  Related Information:
  
  Transaction codes:  
  
  MP30 – Maintain Forecast  
  MP31 – Create Forecast  
  MP32 – Change Forecast  
  MP33 – Display Forecast  
  MD01 / MD02 / MD03 – MRP runs  
  
  
  Tables involved:  
  
  S024 – Forecast data at plant level  
  S026 – Forecast data at MRP area level  
  
  
  Notes / SAP documentation:  
  
  SAP Note related to forecast deletion or MRP area forecast handling may provide additional insights.  
  Check SAP Help Portal for "Forecasting with MRP Areas" for detailed process understanding.
  
  
  
  
  Summary:
  The warning W4401 informs you that forecast values assigned to MRP areas for a material have been deleted. This is usually informational but requires you to verify if the deletion was intended and to restore or re-enter forecast data if necessary to ensure proper MRP planning.