<?xml version="1.0" encoding="utf-8"?>
<ManualTopic ID="/baanerp/cp/onlinemanual/000072" xml:lang="en">
   <Header>
      <Title>Net-change date before time fence</Title>
      <Keyword type="header" order="d1e181084">
         <Level1>Net-change date before time fence</Level1>
      </Keyword>
      <Keyword type="header" order="d1e181087">
         <Level1>Time fence after net-change date</Level1>
      </Keyword>
   </Header>
   <GeneralSection>
      <Paragraph>If LN detects changes that
		influence planned orders, for example, a changed BOM, LN 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, LN 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 might not be up-to-date.</ListItem>
         <ListItem>You cannot see whether
		  or not the net-change date must be reset.</ListItem>
      </List>
      <GeneralSection>
         <SectionTitle>Resetting the net-change date</SectionTitle>
         <Paragraph>If you run an order
		  simulation by means of 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="manual">Reset Net Change in Time Fence</GUIRef> check box determines if LN 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="manual">Generate Within Time Fence</GUIRef> check box is selected, LN always resets the net-change date. In this
		  case, the <GUIRef href="/baanerp/cp/rrp/cprrp1210m000#f.ch.ncst.in.tmfc" role="manual">Reset Net Change in Time Fence</GUIRef> check box is unavailable.</Paragraph>
         <Paragraph>If you clear the <GUIRef href="/baanerp/cp/rrp/cprrp1210m000#f.ch.ncst.in.tmfc" role="manual">Reset Net Change in Time Fence</GUIRef> check box, LN does not reset a net-change date that falls
		  within the time fence.</Paragraph>
         <List>
            <ListIntro>This setting has the following consequences:</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 usually
			 starts at the time fence. As a result, you effectively lose the advantage of
			 the net-change method.</ListItem>
         </List>
         <Paragraph>If you select the <GUIRef href="/baanerp/cp/rrp/cprrp1210m000#f.ch.ncst.in.tmfc" role="manual">Reset Net Change in Time Fence</GUIRef> check box, LN always resets the net-change date.</Paragraph>
         <List>
            <ListIntro>This setting has the following consequences:</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>