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Function documentationDisaggregating Demand Data in Collaborative Sales Forecasting

 

In the collaborative sales forecasting (CSF) process, you release demand data from CSF to short-term forecasting after you have run a consensus finding in CSF. When you release demand data from CSF to short-term forecasting, SAP Supply Network Collaboration (SAP SNC) must disaggregate the demand data it has received from statistical forecasting from weekly to daily time buckets. It disaggregates the data because short-term forecasting displays data in daily time buckets. In the supplier-lead process variant, the forecast data received from CSF is in weekly time buckets. The system disaggregates the data during release using the demand weighting factor of the forecasting process (time series type VMIP1 and key figure DWFACTOR). The distribution pattern for disaggregation is based on the key figure DWFACTOR. In the customer-lead process variant, forecast and planning is done on a daily time bucket level. Therefore no additional disaggregation takes place when the final consensus forecast is sent to short-term forecasting.

Prerequisites

If you are using the factory calendar for the CSF process, you have a forecast profile in which you have defined the factory calendar you are using. To enable the factory calendar, you have selected the Factory Calendar enabled checkbox on the SAP Easy Access screen under Start of the navigation path Demand Next navigation step Forecasting Next navigation step Maintain Short-Term Forecasting Parameters End of the navigation path.

Features

Using the Factory Calendar

If you are using a factory calendar, SAP SNC disaggregates the total quantity from the weekly buckets in CSF and distributes the quantity among the daily buckets in short-term forecasting. SAP SNC distributes the quantities based on the working days you have defined in your factory calendar. To determine how SAP SNC disaggregates quantities and distributes them among the daily buckets in cases of holidays and other events, you can make calendar adjustments in the Calendar adjustments field on the SAP Easy Access screen under Start of the navigation path Demand Next navigation step Forecasting Next navigation step Maintain Short-Term Forecasting Parameters End of the navigation path. You can determine if SAP SNC distributes the quantity from a holiday on the previous day, the next day, or proportionally among the remaining working days.

Note Note

If the holiday is a Monday, and Saturday and Sunday are defined as non-working days, SAP SNC distributes the quantities from Monday to the next day by default. If the holiday is a Friday, and Saturday and Sunday are defined as non-working days, SAP SNC distributes the quantities from Friday to the previous day by default.

End of the note.

Example

Disaggregating Demand Data from a Weekly Bucket

You are using CSF with a factory calendar enabled. Your factory calendar defines Monday to Friday as working days, while Saturday and Sunday are defined as non-working days. You want to release demand data in a weekly bucket for the period of 2010-07-19 to 2010-07-25 (24th of July and 25th of July being the non-working days) with 80 pieces of PRODUCT_A from CSF to short-term forecasting. When CSF releases the demand data, SAP SNC disaggregates it as follows:

Period

19.07.2010

20.07.2010

21.07.2010

22.07.2010

23.07.2010

24.07.2010

25.07.2010

Demand

16

16

16

16

16

0

0

Disaggregating Demand Data from a Weekly Bucket that Includes a National Holiday

You are using CSF with a factory calendar enabled. Your factory calendar defines Monday to Friday as working days, while Saturday and Sunday are defined as non-working days. In this period, Tuesday is a national holiday and you have set up your calendar adjustments so that SAP SNC distributes the quantity for the holiday proportionally among the remaining working days. You want to release demand data in a weekly bucket for the period of 2010-07-19 to 2010-07-25 (the 20th of July being the holiday while the 24th of July and 25th of July are the non-working days) with 80 pieces of PRODUCT_A from CSF to short-term forecasting. When CSF releases the demand data, SAP SNC disaggregates it as follows:

Period

19.07.2010

20.07.2010

21.07.2010

22.07.2010

23.07.2010

24.07.2010

25.07.2010

Demand

20

0

20

20

20

0

0