How To Fix PR021 - Not sufficient historical values available for initialization

SAP Error Message - Details

• Message type: E = Error

• Message class: PR - Forecast: Help messages

• Message number: 021

• Message text: Not sufficient historical values available for initialization

What causes this issue?

The minimum number of historical values necessary for model
initialization is greater than the number that has been given. The
number required depends on the individual forecast model:
<ZH>Model,, ,,Number of past time values</>

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Constant model,, ,, ,,1
Trend model,, ,, ,,3
Seasonal model,, ,, ,,1 season
Seasonal trend model,, ,, ,,1 season + 3
2nd order exp. smoothing,, ,, ,,3
Moving average,, ,, ,,1
Weighted moving average,, ,, ,,1

System Response

How to fix this error?

Manually fill in the historical values.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PR021 - Not sufficient historical values available for initialization ?

  The SAP error message PR021, which states "Not sufficient historical values available for initialization," typically occurs in the context of SAP's Production Planning (PP) or other modules that rely on historical data for forecasting or planning purposes. This error indicates that the system does not have enough historical data to perform the required calculations or initializations for a particular process, such as demand planning or material requirements planning.
  Causes:
  
  
  Insufficient Historical Data: The most common cause is that there is not enough historical data available for the specific material or planning object. This can happen if:
  
  The material has just been created and has no historical sales or consumption data.
  Historical data has been archived or deleted.
  The data is not available for the required time frame.
  
  
  
  Configuration Issues: Incorrect configuration in the planning settings or master data can lead to this error. For example, if the planning parameters are set to require a certain number of historical periods that are not available.
  
  
  Data Transfer Issues: If data is being transferred from another system or if there are issues with data loading processes, this can result in missing historical values.
  
  
  Solutions:
  
  
  Check Historical Data: Verify that there is sufficient historical data for the material or planning object in question. You can do this by checking the relevant tables (e.g., sales history, consumption data) to ensure that data exists for the required periods.
  
  
  Adjust Planning Parameters: If the planning parameters are too strict, consider adjusting them to allow for fewer historical periods. This can be done in the planning configuration settings.
  
  
  Data Maintenance: If the material is new, consider running a simulation or using a different initialization method that does not rely on historical data. You may also want to input some initial data manually if applicable.
  
  
  Review Data Transfer Processes: If data is being transferred from another system, ensure that the transfer processes are functioning correctly and that all necessary data is being loaded into SAP.
  
  
  Consult Documentation: Review SAP documentation or notes related to the specific module you are working with, as there may be additional insights or specific configurations that need to be addressed.
  
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like MD04 (Stock/Requirements List) or MC.9 (Material Analysis) to analyze the data related to the material in question.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  User Forums: Consider visiting SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  If the problem persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a technical consultant who can provide more in-depth analysis and assistance.