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<ManualTopic ID="/baanerp/cp/onlinemanual/000329" xml:lang="en">
	<Header>
		<Title xmlns:ssa="http://www.ssaglobal.com" xmlns:HTML="http://www.w3.org/TR/REC-html40">Forecast Consumption without an Item Master Plan</Title>
		<Keyword><Level1>Forecast Consumption</Level1>
			<Level2>without Item Master Plan</Level2>
		</Keyword>
		<Keyword><Level1>Demand-forecast Consumption</Level1>
			<Level2>Without Item Master Plan</Level2>
		</Keyword>
	</Header>
	<GeneralSection><Paragraph>If an item has no <Link href="/baanerp/cp/glossary/glossary#000019" role="glossary">item master plan</Link>, the only available type of demand forecast is <Link href="/baanerp/cp/glossary/glossary#000017" role="glossary">special demand</Link>.</Paragraph>
		<Paragraph>You can enter special demand for an item or item/channel combination in the <GUIRef href="/baanerp/cp/dsp/cpdsp2100m000" role="session">Special Demand by Item (cpdsp2100m000)</GUIRef> session.</Paragraph>
		<Paragraph>SSA ERP automatically applies forecast consumption during an order simulation. In the <GUIRef href="/baanerp/cp/rrp/cprrp0520m000" role="session">Item Order Plan (cprrp0520m000)</GUIRef> session and the <GUIRef href="/baanerp/cp/dsp/cpdsp2100m000" role="session">Special Demand by Item (cpdsp2100m000)</GUIRef> session, you can also manually perform forecast consumption.</Paragraph>
		<GeneralSection><SectionTitle>Forecast-consumption procedure</SectionTitle>
			<List><ListIntro>The dates of the forecast demand and the actual demand that consumes it do not have to match exactly. A particular instance of actual demand can also consume forecast demand from an earlier moment, or forecast demand from a later moment. This depends on the values of the following fields in the <GUIRef href="/baanerp/cp/rpd/cprpd4100m000" role="session">Scenarios (cprpd4100m000)</GUIRef> session:</ListIntro>
				<ListItem><GUIRef href="/baanerp/cp/rpd/cprpd4100m000#cprpd400.bdfc" role="formfield">Backward Forecast Consumption</GUIRef>
				</ListItem>
				<ListItem><GUIRef href="/baanerp/cp/rpd/cprpd4100m000#cprpd400.fdfc" role="formfield">Forward Forecast Consumption</GUIRef>
				</ListItem>
			</List>
			<Paragraph>Suppose that there is an instance of actual demand on date (and time) P. The starting moment for consumption (B) is P minus the value of the <GUIRef href="/baanerp/cp/rpd/cprpd4100m000#cprpd400.bdfc" role="formfield">Backward Forecast Consumption</GUIRef> field. The end moment for consumption (Y) is P plus the value of the <GUIRef href="/baanerp/cp/rpd/cprpd4100m000#cprpd400.fdfc" role="formfield">Forward Forecast Consumption</GUIRef> field.</Paragraph>
			<List><ListIntro>The consumption proceeds as follows:</ListIntro>
				<ListItem>The actual demand at moment P is used to consume the earliest occurrence of (nonconsumed) forecast on or after moment B.</ListItem>
				<ListItem>If there is still actual demand left, this is used to consume the next forecast occurrence, and so on.</ListItem>
				<ListItem>If necessary, the consumption process continues until moment Y is reached, and all forecast between B and Y has been fully consumed.</ListItem>
			</List>
			<Paragraph>This consumption procedure takes place in two phases.</Paragraph>
		</GeneralSection>
		<GeneralSection><SectionTitle>Phase 1</SectionTitle>
			<Paragraph>In this step, only customer demand that falls in a <Link href="/baanerp/tc/glossary/glossary#000016" role="glossary">channel</Link> is considered. This demand is used to consume the special demand defined for a particular item/channel combination.</Paragraph>
		</GeneralSection>
		<GeneralSection><SectionTitle>Phase 2</SectionTitle>
			<List><ListIntro>In this step, all remaining actual demand is considered:</ListIntro>
				<ListItem>Remaining channel-specific demand after all channel-specific forecast has been consumed.</ListItem>
				<ListItem>Actual customer demand that does not fall in a channel.</ListItem>
				<ListItem>Dependent demand (only if the <GUIRef href="/baanerp/cp/rpd/cprpd1100m000#cprpd100.depd" role="formfield">Dependent Demand Forecast</GUIRef> check box in the <GUIRef href="/baanerp/cp/rpd/cprpd1100m000" role="session">Items - Planning (cprpd1100m000)</GUIRef> session is selected).</ListItem>
			</List>
		</GeneralSection>
	</GeneralSection>
	<RelatedTopics><SectionTitle>Related topics</SectionTitle>
		<RelTopic><Link href="/baanerp/cp/onlinemanual/000331" role="manual">Forecast Consumption</Link>
		</RelTopic>
		<RelTopic><Link href="/baanerp/cp/onlinemanual/000077" role="manual">Demand forecasting in Enterprise Planning</Link>
		</RelTopic>
		<RelTopic><Link href="/baanerp/cp/onlinemanual/000319" role="manual">Demand Forecasting without an Item Master Plan</Link>
		</RelTopic>
	</RelatedTopics>
</ManualTopic>
