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<ManualTopic ID="/baanerp/cp/onlinemanual/000072" xml:lang="en">
	<Header>
		<Title xmlns:ssa="http://www.ssaglobal.com" xmlns:HTML="http://www.w3.org/TR/REC-html40">Net-change date before time fence</Title>
		<Keyword><Level1>Net-change date before time fence</Level1>
		</Keyword>
		<Keyword><Level1>Time fence after net-change date</Level1>
		</Keyword>
	</Header>
	<GeneralSection><Paragraph>If SSA ERP detects changes that influence planned orders (for example, a changed BOM), it sets the net-change date to the date of these changes. A zero net-change date indicates that nothing has changed since the last simulation. After simulating an item, SSA ERP resets the net-change date to zero.</Paragraph>
		<List><ListIntro>If the net-change date lies before the time-fence date, two problems arise:</ListIntro>
			<ListItem>If you do not simulate within the time fence, your planning will possibly not be up-to-date.</ListItem>
			<ListItem>It is not clear if the net-change date should be reset or not.</ListItem>
		</List>
		<GeneralSection><SectionTitle>Resetting the net-change date</SectionTitle>
			<Paragraph>If you run an order simulation using the <GUIRef href="/baanerp/cp/rrp/cprrp1210m000" role="session">Generate Order Planning (cprrp1210m000)</GUIRef> session or the <GUIRef href="/baanerp/cp/rrp/cprrp1220m000" role="session">Generate Order Planning (Item) (cprrp1220m000)</GUIRef> session, the <GUIRef href="/baanerp/cp/rrp/cprrp1210m000#f.ch.ncst.in.tmfc" role="formfield">Reset Net Change in Time Fence</GUIRef> check box determines if SSA ERP resets a net-change date that falls within the time fence.</Paragraph>
		</GeneralSection>
		<Note><SectionTitle>Note</SectionTitle>
			<Paragraph>If the <GUIRef href="/baanerp/cp/rrp/cprrp1210m000#f.sim.in.fence" role="formfield">Generate Within Time Fence</GUIRef> check box is selected, SSA ERP always resets the net-change date. In this case, the <GUIRef href="/baanerp/cp/rrp/cprrp1210m000#f.ch.ncst.in.tmfc" role="formfield">Reset Net Change in Time Fence</GUIRef> check box is disabled.</Paragraph>
			<List><ListIntro>If you clear the <GUIRef href="/baanerp/cp/rrp/cprrp1210m000#f.ch.ncst.in.tmfc" role="formfield">Reset Net Change in Time Fence</GUIRef> check box, SSA ERP does not reset a net-change date that falls within the time fence.</ListIntro>
				<ListItem>The advantage is that if you ignore the time fence during a next simulation, the correct net-change information is still available.</ListItem>
				<ListItem>The disadvantage is that as long as this net-change date exists, any net-change simulation will usually start at the time fence. As a result, you effectively lose the advantage of the net-change method.</ListItem>
			</List>
			<List><ListIntro>If you select the <GUIRef href="/baanerp/cp/rrp/cprrp1210m000#f.ch.ncst.in.tmfc" role="formfield">Reset Net Change in Time Fence</GUIRef> check box, SSA ERP always resets the net-change date.</ListIntro>
				<ListItem>The advantage is that the net-change method will still work after the simulation.</ListItem>
				<ListItem>The disadvantage is that after the simulation, the reset net-change status suggests that the planning is up-to-date, which is possibly not the case. Even if you ignore the time fence in a next simulation, the correct net-change information is no longer available.</ListItem>
			</List>
		</Note>
		<Note><SectionTitle>Note</SectionTitle>
			<Paragraph>In <Link href="/baanerp/cp/glossary/glossary#000059" role="glossary">master planning</Link>, a net-change date that falls before the time fence is always reset during a simulation.</Paragraph>
		</Note>
	</GeneralSection>
	<RelatedTopics><SectionTitle>Related topics</SectionTitle>
		<RelTopic><Link href="/baanerp/cp/onlinemanual/000026" role="manual">Net-change simulations</Link>
		</RelTopic>
		<RelTopic><Link href="/baanerp/cp/onlinemanual/000162" role="manual">RRP run, an overview</Link>
		</RelTopic>
		<RelTopic><Link href="/baanerp/cp/onlinemanual/000164" role="manual">RRP run, basic calculation for one item</Link>
		</RelTopic>
		<RelTopic><Link href="/baanerp/cp/onlinemanual/000015" role="manual">Simulated time period (RRP run)</Link>
		</RelTopic>
	</RelatedTopics>
</ManualTopic>
