<?xml version="1.0" encoding="utf-8"?>
<Session ID="/baanerp/wh/ina/whina2202m000" xml:lang="en">
	<Header>
		<Title xmlns:ssa="http://www.ssaglobal.com" xmlns:HTML="http://www.w3.org/TR/REC-html40">Calculate Demand Forecast (whina2202m000)</Title>
	</Header>
	<HelpTopic><AimSection><Paragraph>Use this session to calculate the <Link href="/baanerp/wh/glossary/glossary#000018" role="glossary">demand forecast</Link> by item for the next period.</Paragraph>
		</AimSection>
		<GeneralSection><Paragraph>SSA ERP uses the demand forecast when calculating the <Link href="/baanerp/wh/glossary/glossary#000377" role="glossary">safety stock</Link>:</Paragraph>
			<Formula><Paragraph UserLevel="Novice" UserType="Taskuser">S = K * 1.25 * MAD Sqrt ((Oint * 5/7 + Oltm + Sftm) / Period Length)</Paragraph>
				<FigLegend><LegendEntry><Symbol>S</Symbol>
						<Desc>safety stock</Desc>
					</LegendEntry>
					<LegendEntry><Symbol>K</Symbol>
						<Desc>safety factor determined by <TextRef href="/kd/dtd/baan" role="label">SSA ERP</TextRef> on basis of service level</Desc>
					</LegendEntry>
					<LegendEntry><Symbol>MAD </Symbol>
						<Desc>mean absolute deviation</Desc>
					</LegendEntry>
					<LegendEntry><Symbol>Oint</Symbol>
						<Desc>order interval</Desc>
					</LegendEntry>
					<LegendEntry><Symbol>Oltm</Symbol>
						<Desc>order lead time</Desc>
					</LegendEntry>
					<LegendEntry><Symbol>Sftm</Symbol>
						<Desc>safety time</Desc>
					</LegendEntry>
					<LegendEntry><Symbol>Period Length</Symbol>
						<Desc>(52 * 5)/number of periods </Desc>
					</LegendEntry>
				</FigLegend>
			</Formula>
			<Paragraph>And when calculating the <Link href="/baanerp/wh/glossary/glossary#000374" role="glossary">reorder point</Link>:</Paragraph>
			<Formula><Paragraph UserLevel="Novice" UserType="Taskuser">         Dem.forec. * (Oltm + Oint * 5/7 + Sftm) 
ROP =	--------------------------------------- + S 
                   Period Length 
</Paragraph>
				<FigLegend><LegendEntry><Symbol>ROP</Symbol>
						<Desc>reorder point</Desc>
					</LegendEntry>
					<LegendEntry><Symbol>Dem.forec.</Symbol>
						<Desc>demand forecast</Desc>
					</LegendEntry>
					<LegendEntry><Symbol>Oltm</Symbol>
						<Desc>order lead time</Desc>
					</LegendEntry>
					<LegendEntry><Symbol>Oint</Symbol>
						<Desc>order interval</Desc>
					</LegendEntry>
					<LegendEntry><Symbol>Sftm</Symbol>
						<Desc>safety time</Desc>
					</LegendEntry>
					<LegendEntry><Symbol>S</Symbol>
						<Desc>safety stock</Desc>
					</LegendEntry>
					<LegendEntry><Symbol>Period Length</Symbol>
						<Desc>(52 * 5)/number of periods</Desc>
					</LegendEntry>
				</FigLegend>
			</Formula>
			<Paragraph>The number of periods for calculating the safety stock and the reorder point must be determined based upon period type and the number of periods as defined in the <GUIRef href="/baanerp/tc/ibd/tcibd2100s000" role="session">Item - Ordering (tcibd2100s000)</GUIRef> session and the <GUIRef href="/baanerp/wh/wmd/whwmd2110s000" role="session">Warehouse - Item (whwmd2110s000)</GUIRef> session.</Paragraph>
		</GeneralSection>
		<GeneralSection><SectionTitle>Updates</SectionTitle>
			<Paragraph>The <GUIRef href="/baanerp/tc/ibd/tcibd2100s000#tcibd200.sfst" role="formfield">Safety Stock</GUIRef> field and the <GUIRef href="/baanerp/tc/ibd/tcibd2100s000#tcibd200.reop" role="formfield">Reorder Point</GUIRef> field in the <GUIRef href="/baanerp/tc/ibd/tcibd2100s000" role="session">Item - Ordering (tcibd2100s000)</GUIRef> session will be updated for the specified items if the <GUIRef href="/baanerp/tc/ibd/tcibd2100s000#tcibd200.auso" role="formfield">Inventory/Order Data</GUIRef> check box in that session and the <GUIRef href="/baanerp/wh/ina/whina2202m000#upd.ord.parm.item" role="formfield">Item Data</GUIRef> check box are selected.</Paragraph>
			<List><ListIntro>If the <GUIRef href="/baanerp/wh/ina/whina2202m000#upd.ord.parm.cwar" role="formfield">Item Data by Warehouse</GUIRef> check box is selected, the following fields in the <GUIRef href="/baanerp/wh/wmd/whwmd2110s000" role="session">Warehouse - Item (whwmd2110s000)</GUIRef> session are updated:</ListIntro>
				<ListItem><GUIRef href="/baanerp/wh/wmd/whwmd2110s000#whwmd210.usab" role="formfield">Expected Annual Issue</GUIRef>
				</ListItem>
				<ListItem><GUIRef href="/baanerp/wh/wmd/whwmd2110s000#whwmd210.sfst" role="formfield">Safety Stock</GUIRef>
				</ListItem>
				<ListItem><GUIRef href="/baanerp/wh/wmd/whwmd2110s000#whwmd210.reop" role="formfield">Reorder Point</GUIRef>
				</ListItem>
			</List>
			<Paragraph>For all items specified, the <GUIRef href="/baanerp/wh/wmd/whwmd4100s000#whwmd400.usab" role="formfield">Expected Annual Issue</GUIRef> field in the <GUIRef href="/baanerp/wh/wmd/whwmd4100s000" role="session">Item - Warehousing (whwmd4100s000)</GUIRef> session will be updated.</Paragraph>
			<List><ListIntro>The demand forecast by period is updated for the specified items in the following sessions:</ListIntro>
				<ListItem><GUIRef href="/baanerp/wh/inr/whinr1120s000" role="session">Item - Issue by Period (whinr1120s000)</GUIRef>
				</ListItem>
				<ListItem><GUIRef href="/baanerp/wh/inr/whinr1130s000" role="session">Warehouse - Item - Issue by Period (whinr1130s000)</GUIRef>
				</ListItem>
			</List>
		</GeneralSection>
		<Note><SectionTitle>Note</SectionTitle>
			<List><ListItem>The <GUIRef href="" role="manual" Update="No">From</GUIRef> and <GUIRef href="" role="manual" Update="No">To</GUIRef> fields of the <GUIRef href="/baanerp/wh/ina/whina2202m000#year.f" role="formfield">Year/Period</GUIRef> field must fall in the year entered in the corresponding year in the <GUIRef href="/baanerp/wh/ina/whina2202m000#usage.year.f" role="formfield">Year/Period of Usage From</GUIRef> field.</ListItem>
				<ListItem>To preview the calculation results in a report before the demand forecasts are actually updated, select <GUIRef href="/baanerp/wh/domains/smup#simulate" role="enum">Simulate</GUIRef>.</ListItem>
				<ListItem>If the <GUIRef href="/baanerp/wh/inr/whinr0100s000#whinr000.iish" role="formfield">Item Issue History</GUIRef> field and <GUIRef href="/baanerp/wh/inr/whinr0100s000#whinr000.iith" role="formfield">Item Issue by Warehouse History</GUIRef> field of the <GUIRef href="/baanerp/wh/inr/whinr0100s000" role="session">Inventory Reporting Parameters (whinr0100s000)</GUIRef> session are cleared, the <GUIRef href="/baanerp/wh/ina/whina2202m000" role="session">Calculate Demand Forecast (whina2202m000)</GUIRef> session is aborted.</ListItem>
			</List>
		</Note>
		<RelatedTopics><SectionTitle>Related topics</SectionTitle>
			<RelTopic><Link href="/baanerp/wh/onlinemanual/000005" role="manual">To calculate demand forecast for each period</Link>
			</RelTopic>
			<RelTopic><Link href="/baanerp/basictasks/000006" role="manual">To use From and To fields</Link>
			</RelTopic>
		</RelatedTopics>
	</HelpTopic>
	<Fields><FieldGroup><Title><GUIRef href="/baanerp/wh/ina/whina2202m000#tcgen.selection" role="groupbox">Selection Range</GUIRef></Title>
			<FieldHelp ID="usage.year.f"><Header>
					<Title xmlns:ssa="http://www.ssaglobal.com" xmlns:HTML="http://www.w3.org/TR/REC-html40">Year/Period of Usage From</Title>
				</Header>
				<FuncDesc>The year from which SSA ERP starts analyzing the <Link href="/baanerp/wh/glossary/glossary#000018" role="glossary">demand forecast</Link>.</FuncDesc>
			</FieldHelp>
			<FieldHelp ID="usage.peri.f"><Header>
					<Title xmlns:ssa="http://www.ssaglobal.com" xmlns:HTML="http://www.w3.org/TR/REC-html40">Year/Period of Usage From</Title>
				</Header>
				<FuncDesc>The period of the year, that is specified in the <GUIRef href="/baanerp/wh/ina/whina2202m000#usage.year.f" role="formfield">Year/Period of Usage From</GUIRef> field, from which SSA ERP starts analyzing the <Link href="/baanerp/wh/glossary/glossary#000018" role="glossary">demand forecast</Link>.</FuncDesc>
			</FieldHelp>
		</FieldGroup>
		<FieldGroup><Title><GUIRef href="/baanerp/wh/ina/whina2202m000#tcgen.update" role="groupbox">Update</GUIRef></Title>
			<FieldHelp ID="sim.or.update"><Header>
					<Title xmlns:ssa="http://www.ssaglobal.com" xmlns:HTML="http://www.w3.org/TR/REC-html40">Simulate/Update</Title>
				</Header>
				<FuncDesc>To preview the calculation results in a printed report before the demand forecasts are actually updated, select <GUIRef href="/baanerp/wh/domains/smup#simulate" role="enum">Simulate</GUIRef>.</FuncDesc>
				<DefaultValue><SectionTitle>Default value</SectionTitle>
					<Paragraph><GUIRef href="/baanerp/wh/domains/smup#update" role="enum">Update</GUIRef>
					</Paragraph>
				</DefaultValue>
			</FieldHelp>
			<FieldHelp ID="upd.ord.parm.item"><Header>
					<Title xmlns:ssa="http://www.ssaglobal.com" xmlns:HTML="http://www.w3.org/TR/REC-html40">Item Data</Title>
				</Header>
				<FuncDesc>If this check box is selected,SSA ERP updates the general order data in the <GUIRef href="/baanerp/tc/ibd/tcibd2100s000" role="session">Item - Ordering (tcibd2100s000)</GUIRef> session.</FuncDesc>
			</FieldHelp>
			<FieldHelp ID="upd.ord.parm.cwar"><Header>
					<Title xmlns:ssa="http://www.ssaglobal.com" xmlns:HTML="http://www.w3.org/TR/REC-html40">Item Data by Warehouse</Title>
				</Header>
				<FuncDesc>If this check box is selected,SSA ERP updates the order data in the <GUIRef href="/baanerp/wh/wmd/whwmd2110s000" role="session">Warehouse - Item (whwmd2110s000)</GUIRef> session.</FuncDesc>
			</FieldHelp>
		</FieldGroup>
		<FieldGroup><Title><GUIRef href="/baanerp/wh/ina/whina2202m000#whinas2202.03" role="groupbox">For Calculation Use</GUIRef></Title>
			<FieldHelp ID="actual.issue"><Header>
					<Title xmlns:ssa="http://www.ssaglobal.com" xmlns:HTML="http://www.w3.org/TR/REC-html40">Actual Issues</Title>
				</Header>
				<FuncDesc>The <GUIRef href="" role="manual">Actual Issue by Period</GUIRef> can be taken into account for the demand forecast. This automatically excludes <GUIRef href="/baanerp/wh/inr/whinr1120s000#whinr120.ddqt" role="formfield">Demand Quantity</GUIRef>.</FuncDesc>
			</FieldHelp>
			<FieldHelp ID="demand.quali"><Header>
					<Title xmlns:ssa="http://www.ssaglobal.com" xmlns:HTML="http://www.w3.org/TR/REC-html40">Qualified Demand Qty</Title>
				</Header>
				<FuncDesc>If this check box is selected,SSA ERP takes into account the <Link href="/baanerp/wh/glossary/glossary#QualifDemand.wh" role="glossary">qualified demand quantity</Link> when analyzing the demand forecast.</FuncDesc>
				<Note><SectionTitle>Note</SectionTitle>
					<Paragraph>The qualified demand quantity is stored in the <GUIRef href="/baanerp/wh/inr/whinr1120s000#whinr120.qdeq" role="formfield">Qualified Demand Qty</GUIRef> field of the <GUIRef href="/baanerp/wh/inr/whinr1120s000" role="session">Item - Issue by Period (whinr1120s000)</GUIRef> session.</Paragraph>
				</Note>
			</FieldHelp>
			<FieldHelp ID="direct.delivery"><Header>
					<Title xmlns:ssa="http://www.ssaglobal.com" xmlns:HTML="http://www.w3.org/TR/REC-html40">Demand Direct Delivery</Title>
				</Header>
				<FuncDesc>The <GUIRef href="/baanerp/wh/ina/whina2202m000#direct.delivery" role="formfield">Demand Direct Delivery</GUIRef> can be taken into account for the demand forecast. The value will be added up to either <GUIRef href="" role="manual">Actual Issue by Period</GUIRef> or <GUIRef href="/baanerp/wh/inr/whinr1120s000#whinr120.ddqt" role="formfield">Demand Quantity</GUIRef>.</FuncDesc>
			</FieldHelp>
			<FieldHelp ID="returned.quan"><Header>
					<Title xmlns:ssa="http://www.ssaglobal.com" xmlns:HTML="http://www.w3.org/TR/REC-html40">Returned Quantity</Title>
				</Header>
				<FuncDesc>The <GUIRef href="/baanerp/wh/ina/whina2202m000#returned.quan" role="formfield">Returned Quantity</GUIRef> can be taken into account for the demand forecast. The value will be subtracted from either <GUIRef href="" role="manual">Actual Issue by Period</GUIRef> or <GUIRef href="/baanerp/wh/inr/whinr1120s000#whinr120.ddqt" role="formfield">Demand Quantity</GUIRef>.</FuncDesc>
			</FieldHelp>
			<FieldHelp ID="lost.sales"><Header>
					<Title xmlns:ssa="http://www.ssaglobal.com" xmlns:HTML="http://www.w3.org/TR/REC-html40">Lost Sales</Title>
				</Header>
				<FuncDesc>The <GUIRef href="/baanerp/wh/inr/whinr1130s000#whinr130.lsts" role="formfield">Lost Sales</GUIRef> can be taken into account for the demand forecast. The value will be subtracted from either <GUIRef href="" role="manual">Actual Issue by Period</GUIRef> or <GUIRef href="/baanerp/wh/inr/whinr1120s000#whinr120.ddqt" role="formfield">Demand Quantity</GUIRef>.</FuncDesc>
			</FieldHelp>
		</FieldGroup>
		<FieldGroup><Title><GUIRef href="/baanerp/wh/ina/whina2202m000#whina.2202.01" role="groupbox">Print Forecast Calculation</GUIRef></Title>
			<FieldHelp ID="print.report"><Header>
					<Title xmlns:ssa="http://www.ssaglobal.com" xmlns:HTML="http://www.w3.org/TR/REC-html40">Print Forecast Calculation</Title>
				</Header>
				<FuncDesc>If this check box is selected, a forecast calculation is printed.</FuncDesc>
			</FieldHelp>
			<FieldHelp ID="year.f"><Header>
					<Title xmlns:ssa="http://www.ssaglobal.com" xmlns:HTML="http://www.w3.org/TR/REC-html40">Year/Period</Title>
				</Header>
				<FuncDesc>The year from which SSA ERP starts generating the report of the forecast demand.</FuncDesc>
			</FieldHelp>
			<FieldHelp ID="peri.f"><Header>
					<Title xmlns:ssa="http://www.ssaglobal.com" xmlns:HTML="http://www.w3.org/TR/REC-html40">Year/Period</Title>
				</Header>
				<FuncDesc>The period of the year, that is specified in the <GUIRef href="/baanerp/wh/ina/whina2202m000#year.f" role="formfield">Year/Period</GUIRef> field, from which SSA ERP starts generating the report of the forecast demand.</FuncDesc>
			</FieldHelp>
			<FieldHelp ID="year.t"><Header>
					<Title xmlns:ssa="http://www.ssaglobal.com" xmlns:HTML="http://www.w3.org/TR/REC-html40">Year/Period</Title>
				</Header>
				<FuncDesc>The last year for which SSA ERP generates the report of the forecast demand.</FuncDesc>
			</FieldHelp>
			<FieldHelp ID="peri.t"><Header>
					<Title xmlns:ssa="http://www.ssaglobal.com" xmlns:HTML="http://www.w3.org/TR/REC-html40">Year/Period</Title>
				</Header>
				<FuncDesc>The last period of the year, that is specified in the <GUIRef href="/baanerp/wh/ina/whina2202m000#year.t" role="formfield">Year/Period</GUIRef> field, for which SSA ERP generates the report of the forecast demand.</FuncDesc>
			</FieldHelp>
		</FieldGroup>
	</Fields>
</Session>
