SAP IBP Outlier Correction

[brienne_tang]

Dear All,

Hope you had a great weekend!

I require clarification on SAP IBP Outlier Correction - i run the job at month & product level yet i found discrepancy with my understanding on SAP Help Portal vs Manual calculation. Trying to understand if i misunderstood any information.

Thanks for your guidance.

Image 1 - referring to Image 1: https://help.sap.com/docs/SAP_INTEGRATED_BUSINESS_PLANNING/feae3cea3cc549aaa9d9de7d363a83e6/9a458154... for outlier detection method - Interquartile Range Test.

Image 2 - I set up as below with Interquartile Range Test

Image 3 - Based on Image 1, i calculated below.

Image 4 - with the calculation, supposedly no outlier is detected. However, after running the job, there were data being identified as outlier for correction.

[LauraTozzo]

Hi Brienne,

the quartiles are computed by taking into account the whole historical horizon set up in the forecast model. You may want to check if your calculation is also done on the same time periods.

Best regards

Laura

[brienne_tang]

Hey Laura,

Thanks for the reply. I have set it up using 12 months of Historical Periods. Wouldn't it uses 12 months of data for calculations?

[LauraTozzo]

Hi,

yes indeed it should use 12 months to compute the outliers. Looking at your data the corrections indeed do not seem to match the lower and upper boundary. The only other setting that would change the thresholds is the Adjustment to Seasonality and Trend with Tolerance, but this does not seem to be your setting. As the results do not match the expected values, please open an incident so that we might investigate this.

Best regards

Laura

[former_member811144]

Hi Brienne, kindly let us know once the ticket is opened and an answer is given. Looking forward regarding SAP analysis.

Best Regards,
Jorge Serpa.