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<ManualTopic ID="/baanerp/cp/onlinemanual/000323" xml:lang="en">
	<Header>
		<Title xmlns:ssa="http://www.ssaglobal.com" xmlns:HTML="http://www.w3.org/TR/REC-html40">To set up an aggregation structure</Title>
		<Keyword><Level1>Aggregation</Level1>
			<Level2>setting up</Level2>
		</Keyword>
	</Header>
	<GeneralSection><Paragraph>To carry out aggregation and/or disaggregation, you must first set up <Link href="/baanerp/ti/glossary/glossary#PlanniBillOf.ti" role="glossary">aggregation relationships</Link>.</Paragraph>
		<List><ListIntro>You can manually define aggregation relationships in the <GUIRef href="/baanerp/cp/rpd/cprpd3110m000" role="session">Aggregation Relationships (cprpd3110m000)</GUIRef> session. Here you can specify, among other things:</ListIntro>
			<ListItem>If you want to use the aggregation relationship for aggregation, for disaggregation, or for both.</ListItem>
			<ListItem>If you want to use the aggregation relationship to aggregate/disaggregate a particular type of planning data.</ListItem>
		</List>
		<Paragraph>In addition, you can let SSA ERP generate aggregation relationships between a specific family item and an entire range of sub-items in the <GUIRef href="/baanerp/cp/rpd/cprpd3211m000" role="session">Generate Aggregation Relationships (cprpd3211m000)</GUIRef> session. This is a straightforward way to create aggregation relationships, because you can only define general settings that apply to all the relationships that SSA ERP generates for the specified range of sub-items. Afterwards, you can fine-tune each of the aggregation relationships that SSA ERP generated individually in the <GUIRef href="/baanerp/cp/rpd/cprpd3110m000" role="session">Aggregation Relationships (cprpd3110m000)</GUIRef> session.</Paragraph>
		<Note><SectionTitle>Note</SectionTitle>
			<List><ListIntro>The way in which SSA ERP uses the various aggregation percentages that you define in the <GUIRef href="/baanerp/cp/rpd/cprpd3110m000" role="session">Aggregation Relationships (cprpd3110m000)</GUIRef> session depends on the value that you specify in the <GUIRef href="/baanerp/cp/rpd/cprpd3110m000#cprpd310.agty" role="formfield">Aggregation Type</GUIRef> field:</ListIntro>
				<ListItem>If you specify <GUIRef href="/baanerp/cp/domains/rpd.agty#aggregate" role="enum">Aggregate from Sub-Item</GUIRef>, <GUIRef href="/baanerp/tc" role="package">Common Data</GUIRef> aggregates the planning data according to the percentage you define for each type of data.</ListItem>
				<ListItem>If you specify <GUIRef href="/baanerp/cp/domains/rpd.agty#disaggregate" role="enum">Disaggregate to Sub-Item</GUIRef>, <GUIRef href="/baanerp/tc" role="package">Common Data</GUIRef> disaggregates the planning data according to the percentage you define for each type of data.</ListItem>
				<ListItem>If you specify <GUIRef href="/baanerp/cp/domains/rpd.agty#both" role="enum">Both</GUIRef>, <GUIRef href="/baanerp/tc" role="package">Common Data</GUIRef> aggregatess 100% of the underlying planning data and disaggregates them according to the percentages that you specified for each specific data on the aggregation relationship.</ListItem>
			</List>
		</Note>
		<Note><SectionTitle>Note</SectionTitle>
			<Paragraph>If you want to use planning percentages for disaggregation as well, it is recommended that you define separate aggregation relationships for aggregation and disaggregation.</Paragraph>
		</Note>
		<GeneralSection><SectionTitle>Automatic updating</SectionTitle>
			<List><ListIntro>For aggregation and/or disaggregation, you need to set the following fields in the <GUIRef href="/baanerp/cp/rpd/cprpd1100m000" role="session">Items - Planning (cprpd1100m000)</GUIRef> session to <GUIRef href="/baanerp/cp/domains/rpd.auto#aggregate" role="enum">(Dis)aggregate</GUIRef> or <GUIRef href="/baanerp/cp/domains/rpd.auto#all" role="enum">Always Update</GUIRef> (as required):</ListIntro>
				<ListItem><GUIRef href="/baanerp/cp/rpd/cprpd1100m000#cprpd100.aupr" role="formfield">Production Plan</GUIRef>
				</ListItem>
				<ListItem><GUIRef href="/baanerp/cp/rpd/cprpd1100m000#cprpd100.aupu" role="formfield">Purchase Plan</GUIRef>
				</ListItem>
				<ListItem><GUIRef href="/baanerp/cp/rpd/cprpd1100m000#cprpd100.auiv" role="formfield">Inventory Plan</GUIRef>
				</ListItem>
				<ListItem><GUIRef href="/baanerp/cp/rpd/cprpd1100m000#cprpd100.audf" role="formfield">Demand Forecast</GUIRef>
				</ListItem>
			</List>
		</GeneralSection>
		<GeneralSection><SectionTitle>Special cases of aggregation</SectionTitle>
			<Paragraph>You can use the <GUIRef href="/baanerp/cp/rmp/cprmp2250m000" role="session">Aggregate Channel, Plans &amp; Orders (cprmp2250m000)</GUIRef> session and the <GUIRef href="/baanerp/cp/rmp/cprmp2260m000" role="session">Disaggregate Channel, Plans &amp; Orders (cprmp2260m000)</GUIRef> session to aggregate or disaggregate planning data.</Paragraph>
			<List><ListIntro>However, note the following special cases of aggregation:</ListIntro>
				<ListItem>Use the <GUIRef href="/baanerp/cp/dsp/cpdsp5210m000" role="session">Aggregate Channel to Item Master Plan (cpdsp5210m000)</GUIRef> to aggregate data from <Link href="/baanerp/cp/glossary/glossary#000020" role="glossary">channel master plans</Link> to the corresponding item master plan. For this type of aggregation, you do not need to define aggregation relationships.</ListItem>
				<ListItem>Use the <GUIRef href="/baanerp/cp/rpd/cprpd4200m000" role="session">Initialize, Roll, and Update Scenario (cprpd4200m000)</GUIRef> session to aggregate <Link href="/baanerp/cp/glossary/glossary#000044" role="glossary">goods-flow</Link> data to a product family. Select the <GUIRef href="/baanerp/cp/rpd/cprpd4200m000#update.goods.flow" role="formfield">Update Goods Flow Data</GUIRef> check box. (For this type of aggregation, aggregation relationships are required.)</ListItem>
			</List>
		</GeneralSection>
	</GeneralSection>
	<RelatedTopics><SectionTitle>Related topics</SectionTitle>
		<RelTopic><Link href="/baanerp/cp/onlinemanual/000105" role="manual">Aggregated planning</Link>
		</RelTopic>
		<RelTopic><Link href="/baanerp/cp/onlinemanual/000129" role="manual">Aggregation of planning data</Link>
		</RelTopic>
		<RelTopic><Link href="/baanerp/cp/onlinemanual/000130" role="manual">Disaggregation of planning data</Link>
		</RelTopic>
		<RelTopic><Link href="/baanerp/cp/onlinemanual/000009" role="manual">Multisite aggregation</Link>
		</RelTopic>
		<RelTopic><Link href="/baanerp/cp/onlinemanual/000324" role="manual">Product families in Enterprise Planning</Link>
		</RelTopic>
	</RelatedTopics>
</ManualTopic>
