How To Fix MG257 - Transaction &: forecast values skipped (period ind. missing)

SAP Error Message - Details

• Message type: E = Error

• Message class: MG - Batch input: material master

• Message number: 257

• Message text: Transaction &: forecast values skipped (period ind. missing)

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 MG257 - Transaction &: forecast values skipped (period ind. missing) ?

  The SAP error message MG257, which states "Transaction &: forecast values skipped (period ind. missing)," typically occurs in the context of Material Requirements Planning (MRP) or forecasting processes in SAP. This error indicates that the system is unable to process forecast values for a material because the period indicator is missing for the specified transaction.
  Cause:
  
  Missing Period Indicator: The most common cause of this error is that the period indicator (which defines the time period for which the forecast is valid) is not maintained in the relevant master data or configuration settings.
  Incorrect Configuration: There may be issues with the configuration of the forecasting settings in the system, such as missing or incorrect settings in the forecasting profile.
  Data Inconsistencies: There could be inconsistencies in the data related to the material or the forecast, such as missing entries in the forecast tables.
  
  Solution:
  
  
  Check Material Master Data:
  
  Go to the material master record (transaction code MM03) and check the relevant views (especially the MRP and Forecast views) to ensure that the period indicator is correctly maintained.
  
  
  
  Review Forecast Profile:
  
  Check the forecast profile assigned to the material. Ensure that the period indicator is defined in the forecast profile settings (transaction code MP30 or MP38).
  
  
  
  Maintain Period Indicator:
  
  If the period indicator is missing, you may need to maintain it. This can typically be done in the forecasting settings or directly in the material master.
  
  
  
  Check Forecast Data:
  
  Review the forecast data for the material using transaction code MP38 or MP30. Ensure that the forecast values are correctly entered and that there are no gaps in the data.
  
  
  
  Run MRP Again:
  
  After making the necessary corrections, run the MRP process again to see if the error persists.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  MM03: Display Material Master
  MP30: Maintain Forecast
  MP38: Display Forecast
  MD02: MRP Run
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Refer to SAP documentation on MRP and forecasting for more detailed information on how to set up and maintain these processes.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in MRP and forecasting.