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Attention: The fact that forecast consumption takes place twice, both before and after the creation of the configuration item, is transparent to the user. The purpose of this section is only to provide detailed information.

Forecast Consumption: Before AutoCreate Configuration

Attention: Under normal circumstances, no sales order demand is placed for mandatory components. You can also generate derived sales order demand for selected mandatory components, since forecast consumption generates derived sales order demand for all items where you have set Forecast Control to Consume or Consume and Derive. This lets you define and maintain forecasts for key mandatory components as well as models, option classes, and options.

Before you run the AutoCreate Configuration process, forecast consumption uses actual sales order demand for models, option classes, options, and derived sales order demand for selected mandatory components, to consume your forecasts.

Example: Before AutoCreate Configuration

Level	Item	BOM Item Type	Forecast Control	Optional	Plan %	FC/ SO
. 2	. Laptop Computer	Model	Consume			90 10
. . 3	. . Carrying Case	Standard	Consume and Derive	No	100%	90 10
. . 3	. . Keyboard	Standard	Consume and Derive	No	100%	90 10
. . 3	. . CPU	Option Class	Consume and Derive	No	100%	90 10
. . . 4	. . . 386 Processor	Standard	Consume and Derive	Yes	65%	65
. . . 4	. . . 486 Processor	Standard	Consume and Derive	Yes	35%	25 10
. . 3	. . Monitor	Option Class	Consume and Derive	No	100%	90 10
. . . 4	. . . VGA	Option Class	Consume and Derive	Yes	70%	60 10
. . . . 5	. . . . VGA Manual	Standard	Consume and Derive	No	100%	60 10
. . . . 5	. . . . VGA1	Standard	Consume and Derive	Yes	50%	25 10
. . . . 5	. . . . VGA2	Standard	Consume and Derive	Yes	50%	35
. . . 4	. . . EGA	Option Class	Consume and Derive	Yes	30%	30
. . . . 5	. . . . EGA1	Standard	Consume and Derive	Yes	55%	16.5
. . . . 5	. . . . EGA2	Standard	Consume and Derive	Yes	45%	13.5
. . . 4	. . . Monitor Manual	Standard	None	No	100%
. . 3	. . Operating System	Option Class	Consume and Derive	Yes	90%	80 10
. . . 4	. . DOS	Standard	Consume and Derive	Yes	80%	62 10
. . 4	. . UNIX	Standard	Consume and Derive	Yes	20%	18
Table 1 - 11. Forecast Consumption (Page 2 of 2)

Forecast Consumption: After AutoCreate Configuration

When creating the configuration item, the AutoCreate Configuration process also creates a single level bill of material for the configuration item. The single level bill includes all ordered options, all mandatory components of all ordered models and options classes, and each ordered model and option class. The models and option classes appear on the configuration bill as phantoms, and are only there to consume forecasts and relieve master schedules. They are not used by the planning process or Oracle Work in Process since all mandatory components from the model and option class bills are also included directly on the single level bill.

The following table illustrates the single-level configuration bill created by the AutoCreate Configuration process in response to the sales order for 10 Laptop Computers with 486 processors, VGA1 monitors, and DOS operating system.

Level	Item	BOM Item Type	Optional
1	Laptop Computer-001	Standard	No
2	Laptop Computer	Model	No
2	Carrying Case	Standard	No
2	Keyboard	Standard	No
2	CPU	Option Class	No
2	486 Processor	Standard	No
2	Monitor	Option Class	No
2	VGA	Option Class	No
2	VGA Manual	Standard	No
2	VGA1	Standard	No
2	Monitor Manual	Standard	No
2	Operating System	Option Class	No
2	DOS	Standard	No
Table 1 - 12. Single Level Bill for Laptop Configuration (Page 1 of 1)

In the post-configuration stage, forecast consumption uses the sales order demand for the new configuration item to consume forecasts. Typically, you do not have any forecasts defined for unique configurations. Therefore, forecast consumption does not find any forecasts to consume. If forecast explosion cannot find any forecasts to consume, it explodes the configuration bill and consumes forecasts for each model and option class on the bill. It also consumes forecasts for each standard item on the configuration bill where Forecast Control is set to Consume or Consume and Derive.

To ensure that forecast consumption is consistent before and after the AutoCreate Configuration process, forecast consumption only consumes forecasts for standard items on configuration bills where Forecast Control is set to Consume or Consume and Derive.

Attention: If you set Forecast Control to None for an option, and then define forecasts for the option, you get inconsistent forecast consumption before and after the AutoCreate Configuration process. Before the AutoCreate Configuration process, forecast consumption uses actual sales order demand to consume any existing forecasts. After the AutoCreate Configuration process, forecast consumption does not consume those same forecasts since it only consumes forecasts for standard items on configuration bills where Forecast Control is set to Consume or Consume and Derive.

Example: After AutoCreate Configuration

Level	Item	BOM Item Type	Forecast Control	Optional	Plan %	FC/ SO
1	Laptop Computer-001	Standard	Consume			10
Table 1 - 13 Sales Order Demand for the Configuration Item (Page 1 of 1)

Level	Item	BOM Item Type	Forecast Control	Optional	Plan %	FC/ SO
2	Laptop Computer	Model	Consume			90
. 3	. Carrying Case	Standard	Consume and Derive	No	100%	90
. 3	. Keyboard	Standard	Consume and Derive	No	100%	90
. 3	. CPU	Option Class	Consume and Derive	No	100%	90
. . 4	. . 386 Processor	Standard	Consume and Derive	Yes	65%	65
. . 4	. . 486 Processor	Standard	Consume and Derive	Yes	35%	25
. 3	. Monitor	Option Class	Consume and Derive	No	100%	90
. . 4	. . VGA	Option Class	Consume and Derive	Yes	70%	60
. . . . 5	. . . . VGA Manual	Standard	Consume and Derive	No	100%	60
. . . . 5	. . . . VGA1	Standard	Consume and Derive	Yes	50%	25
. . . . 5	. . . . VGA2	Standard	Consume and Derive	Yes	50%	35
. . . 4	. . . EGA	Option Class	Consume and Derive	Yes	30%	30
. . . . 5	. . . . EGA1	Standard	Consume and Derive	Yes	55%	16.5
. . . . 5	. . . . EGA2	Standard	Consume and Derive	Yes	45%	13.5
. . . 4	. . . Monitor Manual	Standard	None	No	100%
. . 3	. . Operating System	Option Class	Consume and Derive	Yes	90%	80
. . . 4	. . . DOS	Standard	Consume and Derive	Yes	80%	62
. . . 4	. . . UNIX	Standard	Consume and Derive	Yes	20%	18
Table 1 - 13. Forecast Consumption (Page 2 of 2)