<?xml version="1.0" encoding="utf-8"?>
<ManualTopic ID="/baanerp/cp/onlinemanual/000046" xml:lang="en">
	<Header>
		<Title xmlns:ssa="http://www.ssaglobal.com" xmlns:HTML="http://www.w3.org/TR/REC-html40">Allocation rule: historic percentage</Title>
		<Keyword><Level1>Allocation rule</Level1>
			<Level2>Historic percentage</Level2>
		</Keyword>
		<Keyword><Level1>Historic percentage</Level1>
		</Keyword>
	</Header>
	<GeneralSection><Paragraph>For the selection of external suppliers and the generation of <Link href="/baanerp/cp/glossary/glossary#000048" role="glossary">planned purchase orders</Link>, you can use a <Link href="/baanerp/cp/glossary/glossary#000105" role="glossary">supply strategy</Link> with a special <Link href="/baanerp/cp/glossary/glossary#000108" role="glossary">allocation rule</Link>: <GUIRef href="/baanerp/cp/domains/com.diru#historic" role="enum">Historic Percentage</GUIRef>.</Paragraph>
		<GeneralSection><SectionTitle>Historic percentage</SectionTitle>
			<Paragraph>If multiple <Link href="/baanerp/tc/glossary/glossary#BuyfroBusine.tc" role="glossary">buy-from business partners</Link> are capable to supply a particular item, you can specify which percentage of the total supply of the item must be supplied by each of the <Link href="/baanerp/tc/glossary/glossary#BuyfroBusine.tc" role="glossary">buy-from business partners</Link>.</Paragraph>
			<Paragraph>You can define this percentage in the <GUIRef href="/baanerp/td/ipu/tdipu0110m000#tdipu010.srcp" role="formfield">Sourcing Percentage</GUIRef> field in the <GUIRef href="/baanerp/td/ipu/tdipu0110m000" role="session">Item - Purchase Business Partner (tdipu0110m000)</GUIRef> session.</Paragraph>
			<Paragraph>If the <GUIRef href="/baanerp/cp/rpd/cprpd7120m000#cprpd720.diru" role="formfield">Allocation Rule</GUIRef> field in the <GUIRef href="/baanerp/cp/rpd/cprpd7120m000" role="session">Supply Strategy (cprpd7120m000)</GUIRef> session is set to <GUIRef href="/baanerp/cp/domains/com.diru#historic" role="enum">Historic Percentage</GUIRef>, <GUIRef href="" role="manual">Enterprise Planning</GUIRef> attempts to make the distribution of the deliveries by various suppliers conform the specified percentages in the long run. To achieve the desired percentage, <GUIRef href="" role="manual">Enterprise Planning</GUIRef> calculates the average actual percentage allocated to each supplier.</Paragraph>
			<Paragraph>You can see the result of the historic quantities in the <GUIRef href="/baanerp/cp/rpd/cprpd7150m000" role="session">Active Supply Sources Overview (cprpd7150m000)</GUIRef> session.</Paragraph>
			<Paragraph>To use this method, you must run the <GUIRef href="/baanerp/cp/rpd/cprpd7250m000" role="session">Generate Active Supplying Source Overview (cprpd7250m000)</GUIRef> session from time to time, for example, once a month, to update the active supply sources overview.</Paragraph>
		</GeneralSection>
	</GeneralSection>
	<RelatedTopics><SectionTitle>Related topics</SectionTitle>
		<RelTopic><Link href="/baanerp/cp/onlinemanual/000305" role="manual">Supply planning</Link>
		</RelTopic>
		<RelTopic><Link href="/baanerp/cp/onlinemanual/000158" role="manual">Sourcing strategies</Link>
		</RelTopic>
		<RelTopic><Link href="/baanerp/cp/onlinemanual/000056" role="manual">To select suppliers</Link>
		</RelTopic>
		<RelTopic><Link href="/baanerp/cp/onlinemanual/000060" role="manual">Lot sizing</Link>
		</RelTopic>
		<RelTopic><Link href="/baanerp/cp/onlinemanual/000161" role="manual">To compute supply lead-times</Link>
		</RelTopic>
	</RelatedTopics>
</ManualTopic>
