SAP ABAP Message Class /SAPAPO/PR Message Number 444 (Number of periods: &1, Autocorrelation: &2, Limit: &3)
Hierarchy
SAP_BW (Software Component) SAP Business Warehouse
   SCM-BAS (Application Component) SCM Basis
     /SAPAPO/SCMB_FORECAST (Package) Forecast
Attribute
Message class /SAPAPO/PR  
Short Description Messages for FG /SAPAPO/FORECAST    
Message Number 444  
Documentation status       Space: object requires documentation
Authorization check Error Message      
Changed On 20130531   
Message Text
Number of periods: &1, Autocorrelation: &2, Limit: &3
Help Document

Diagnosis

To test for seasonal effects, the system determines the autocorrelation function (for formulas, see the documentation in SAP Library under Automatic Model Selection Procedure 1). The absolute value lies between 0 and 1. The closer it gets to 1, the more likely a seasonal effect exists. The system maintains a limit value, under which a seasonal effect is deemed not significant. The proposed limit value is 0.30. If the autocorrelation value is greater than this value, the system reports a seasonal effect and uses a seasonal model or a seasonal trend model.

You can change the default value by using the Business Add-In (BAdI) /SAPAPO/SCM_FCSTPARA.

If you have specified that the length of a seasonal period can vary, the system selects the period with the highest absolute value of the autocorrelation function (provided that the value of at least one period lies above the limit value).

System Response

Procedure

Procedure for System Administration

History
Last changed on/by 20130531  SAP 
SAP Release Created in