<?xml version="1.0" encoding="utf-8"?>
<ManualTopic ID="/baanerp/cp/onlinemanual/000161" xml:lang="en">
   <Header>
      <Title>To compute supply lead-times</Title>
      <Keyword type="header" order="d1e207967">
         <Level1>Computing Supply Lead Times</Level1>
      </Keyword>
      <Keyword type="header" order="d1e207970">
         <Level1>Supply lead times</Level1>
      </Keyword>
   </Header>
   <GeneralSection>
      <Paragraph>The order dates (start
		dates) and delivery dates (finish dates) for <Link href="/baanerp/cp/glossary/glossary#000050" role="glossary">planned orders</Link> in <GUIRef href="/baanerp/cp" role="package">Enterprise Planning</GUIRef> can be determined in a number of ways.</Paragraph>
      <List>
         <ListIntro>The following factors play an important role in determining
		  the order start and finish date:</ListIntro>
         <ListItem>Lead times defined for
		  various parts of the supply process.</ListItem>
         <ListItem>Calendars (which define
		  workdays and working hours).</ListItem>
         <ListItem>Distance between the
		  supplying and receiving address.</ListItem>
      </List>
   </GeneralSection>
   <GeneralSection>
      <Paragraph>For information about the way in which ERP Enterprise determines order
		start and finish date, refer to online manual topic <Link href="/baanerp/cp/onlinemanual/000348" role="manual">To determine order start and finish date (basic procedure)</Link>.</Paragraph>
      <GeneralSection>
         <Paragraph>In general, the following applies to the start dates and
		  finish dates of planned orders:</Paragraph>
         <List>
            <ListItem>The start date and finish date are never before the scenario
			 start date.</ListItem>
            <ListItem>The start date can be in the past.</ListItem>
            <ListItem>If you simulate within the time fence, the finish date can
			 be in the past.</ListItem>
            <ListItem>If you do not simulate within the time fence, the finish
			 date is never before the time fence (and never in the past).</ListItem>
            <ListItem>If you use fixed deliveries and simulate within the time
			 fence, the finish date is always on a fixed delivery moment.</ListItem>
            <ListItem>If you use fixed deliveries and do not simulate within the
			 time fence, the finish date is always on a fixed delivery moment after the time
			 fence.</ListItem>
         </List>
      </GeneralSection>
      <GeneralSection>
         <SectionTitle>Supply lead time</SectionTitle>
         <Paragraph>The effective supply
		  lead time depends on the type of order, and the planning method used.</Paragraph>
      </GeneralSection>
      <GeneralSection>
         <SectionTitle>Production lead time</SectionTitle>
         <List>
            <ListIntro>Planned production orders can be planned in two ways:</ListIntro>
            <ListItem>Based on detailed <Link href="/baanerp/ti/glossary/glossary#Routing_ti" role="glossary">routing</Link> data, using the
			 appropriate calendars</ListItem>
            <ListItem>Based on a <Link href="/baanerp/cp/glossary/glossary#000057" role="glossary">fixed lead time</Link>, using the
			 enterprise-unit calendar</ListItem>
         </List>
      </GeneralSection>
      <GeneralSection>
         <SectionTitle>Purchase lead time</SectionTitle>
         <List>
            <ListIntro>Planned purchase orders are planned using various types of
			 lead-time data:</ListIntro>
            <ListItem>Item/supplier data (or
			 item purchase data, if no supplier can be found)</ListItem>
            <ListItem>Item/warehouse data</ListItem>
            <ListItem>Distance tables</ListItem>
         </List>
         <Paragraph>Planned purchase orders can be planned in two
		  ways:</Paragraph>
         <List>
            <ListItem>Based on various types of lead times, using the appropriate
			 calendars.</ListItem>
            <ListItem>Based on a calculated lead time, interpreted as calendar
			 days.</ListItem>
         </List>
      </GeneralSection>
      <GeneralSection>
         <SectionTitle>Distribution lead time</SectionTitle>
         <Paragraph>Planned distribution
		  orders are planned by using <Link href="/baanerp/cp/glossary/glossary#000005" role="glossary">supplying relationships</Link>.</Paragraph>
         <Paragraph>Planned distribution orders can be planned in two
		  ways:</Paragraph>
         <List>
            <ListItem>Based on distance tables, using an appropriate calendar.</ListItem>
            <ListItem>Based on the fixed supply lead time defined in the <GUIRef href="/baanerp/cp/rpd/cprpd7130m000" role="session">Supplying Relationships (cprpd7130m000)</GUIRef> session, using an appropriate calendar.</ListItem>
         </List>
         <Paragraph>In general, there are two ways in which <GUIRef href="/baanerp/cp" role="package">Enterprise Planning</GUIRef> calculates order start dates and order finish dates of planned
		  orders:</Paragraph>
         <List>
            <ListItem>Based on a fixed value that the user defines, or that ERP Enterprise calculates.</ListItem>
            <ListItem>Based on item-specific data about each lead-time component
			 in the <Link href="/baanerp/tc/glossary/glossary#000010" role="glossary">order lead time</Link>.</ListItem>
         </List>
         <Paragraph>Which of these two methods <GUIRef href="/baanerp/cp" role="package">Enterprise Planning</GUIRef> uses, depends on the order type, and on whether the finish date that <GUIRef href="/baanerp/cp" role="package">Enterprise Planning</GUIRef> finds, is before or after the <Link href="/baanerp/cp/glossary/glossary#000058" role="glossary">fixed lead-time horizon</Link>.</Paragraph>
         <Paragraph>For detailed information about lead-time calculation according
		  to order type, you can refer to the corresponding related topic.</Paragraph>
      </GeneralSection>
   </GeneralSection>
   <RelatedTopics>
      <SectionTitle>Related topics</SectionTitle>
      <RelTopic>
         <Link href="/baanerp/cp/onlinemanual/000046" role="manual">Allocation rule: historic percentage</Link>
      </RelTopic>
      <RelTopic>
         <Link href="/baanerp/cp/onlinemanual/000314" role="manual">Production lead-time calculation in Enterprise Planning</Link>
      </RelTopic>
      <RelTopic>
         <Link href="/baanerp/cp/onlinemanual/000061" role="manual">Distribution lead time based on the supply calendar</Link>
      </RelTopic>
      <RelTopic>
         <Link href="/baanerp/cp/onlinemanual/000062" role="manual">Distribution Lead-time Calculation</Link>
      </RelTopic>
      <RelTopic>
         <Link href="/baanerp/cp/onlinemanual/000034" role="manual">Calendars in Enterprise Planning</Link>
      </RelTopic>
      <RelTopic>
         <Link href="/baanerp/cp/onlinemanual/000335" role="manual">Purchase lead time calculation</Link>
      </RelTopic>
      <RelTopic>
         <Link href="/baanerp/cp/onlinemanual/000335" role="manual">Purchase lead time calculation</Link>
      </RelTopic>
      <RelTopic>
         <Link href="/baanerp/cp/onlinemanual/000314" role="manual">Production lead-time calculation in Enterprise Planning</Link>
      </RelTopic>
      <RelTopic>
         <Link href="/baanerp/cp/onlinemanual/000062" role="manual">Distribution Lead-time Calculation</Link>
      </RelTopic>
   </RelatedTopics>
</ManualTopic>