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<ManualTopic ID="/baanerp/cp/onlinemanual/000302" xml:lang="en">
	<Header>
		<Title xmlns:ssa="http://www.ssaglobal.com" xmlns:HTML="http://www.w3.org/TR/REC-html40">Plan periods in Enterprise Planning</Title>
		<Keyword><Level1>Plan periods</Level1>
			<Level2>Enterprise Planning</Level2>
		</Keyword>
	</Header>
	<GeneralSection><Paragraph>A scenario consists of <Link href="/baanerp/cp/glossary/glossary#000109" role="glossary">plan periods</Link>. Plan periods can be of varying length, and are defined in calendar days, weeks, or months.</Paragraph>
		<Paragraph>You can define the plan periods for a scenario in the <GUIRef href="/baanerp/cp/rpd/cprpd4120m000" role="session">Scenario - Periods (cprpd4120m000)</GUIRef> session. After this, you need to run the <GUIRef href="/baanerp/cp/rpd/cprpd4200m000" role="session">Initialize, Roll, and Update Scenario (cprpd4200m000)</GUIRef> session for the changes to take effect.</Paragraph>
		<Note><SectionTitle>Note</SectionTitle>
			<Paragraph>If the plan-period definition does not cover the whole scenario, SSA ERP extends the last plan period to cover the remainder of the scenario.</Paragraph>
		</Note>
		<Paragraph>Plan periods are used as time buckets for <Link href="/baanerp/cp/glossary/glossary#000059" role="glossary">master planning</Link>.</Paragraph>
		<Note><SectionTitle>Note</SectionTitle>
			<Paragraph>In Enterprise Planning, horizons and time fences are rounded to the end of a plan period, except for the <Link href="/baanerp/cp/glossary/glossary#000071" role="glossary">signal horizon</Link>. For that reason, you must always define plan periods for a scenario, even if you only use <Link href="/baanerp/cp/glossary/glossary#000060" role="glossary">order planning</Link>.</Paragraph>
		</Note>
	</GeneralSection>
	<RelatedTopics><SectionTitle>Related topics</SectionTitle>
		<RelTopic><Link href="/baanerp/cp/onlinemanual/000044" role="manual">Scenarios in Enterprise Planning</Link>
		</RelTopic>
		<RelTopic><Link href="/baanerp/cp/onlinemanual/000023" role="manual">Horizons and time fences</Link>
		</RelTopic>
	</RelatedTopics>
</ManualTopic>
