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<ManualTopic ID="/baanerp/cp/onlinemanual/at000180" xml:lang="en">
   <Header>
      <Title>Capacity CTP check</Title>
      <Keyword type="header" order="d1e156456">
         <Level1>CTP check</Level1>
         <Level2>capacity</Level2>
      </Keyword>
      <Keyword type="header" order="d1e156461">
         <Level1>Capacity</Level1>
         <Level2>CTP check</Level2>
      </Keyword>
   </Header>
   <GeneralSection>
      <Paragraph>The capacity CTP represents what you can produce in addition to
		the standard ATP, taking the free capacity of critical work centers into
		account. Component CTP and capacity CTP can be seen as Build to
		Promise.</Paragraph>
      <Paragraph>LN calculates the CTP quantity from the free capacity of a work center and based
		on the number of hours required to manufacture one additional end item.</Paragraph>
      <ExampleSection>
         <SectionTitle>Example</SectionTitle>
         <List>
            <ListItem>ATP of A =10.</ListItem>
            <ListItem>CTP of work center WC-1 = Three hours.</ListItem>
            <ListItem>0.5 hours of WC-1 is required to produce one piece of
			 A.</ListItem>
         </List>
         <Paragraph>If LN performs an ATP check and a capacity-CTP check for item A, the result is 16
		  (ATP of A + additional CTP of WC-1).</Paragraph>
      </ExampleSection>
   </GeneralSection>
   <GeneralSection>
      <SectionTitle>Enabling capacity CTP checking</SectionTitle>
      <List>
         <ListIntro>To enable capacity CTP checking for the end item:</ListIntro>
         <ListItem>Select the <GUIRef href="/baanerp/cp/rpd/cprpd1100m000#cprpd100.catp" role="manual">Capacity CTP</GUIRef> check box in the <GUIRef href="/baanerp/cp/rpd/cprpd1100m000" role="session">Items - Planning (cprpd1100m000)</GUIRef> session.</ListItem>
         <ListItem>Select the <GUIRef href="/baanerp/cp/rpd/cprpd1100m000#cprpd100.cria" role="manual">Critical in CTP</GUIRef> and <GUIRef href="/baanerp/cp/rpd/cprpd2100m000#cprpd200.grmp" role="manual">Maintain Resource Master Plan</GUIRef> check boxes for the
		  resource (work center) in the <GUIRef href="/baanerp/cp/rpd/cprpd2100m000" role="session">Resource (cprpd2100m000)</GUIRef> session.</ListItem>
      </List>
      <Paragraph>LN uses
		the resource master plan to calculate the capacity CTP of a resource.
		Therefore, you must always select the <GUIRef href="/baanerp/cp/rpd/cprpd2100m000#cprpd200.grmp" role="manual">Maintain Resource Master Plan</GUIRef> check box when you
		define a resource as critical in CTP. Otherwise, LN will not calculate the capacity CTP during CTP
		checks.</Paragraph>
   </GeneralSection>
   <GeneralSection>
      <SectionTitle>Combined component CTP and capacity CTP - single
		level</SectionTitle>
      <Paragraph>If you use both component CTP and capacity CTP, the most
		restrictive one, available components or available capacity, is
		leading.</Paragraph>
      <ExampleSection>
         <SectionTitle>Example</SectionTitle>
         <List>
            <ListItem>End item A is manufactured in work center WC-1 using
			 component B.</ListItem>
            <ListItem>ATP of A = 10.</ListItem>
            <ListItem>ATP of component B = Six pieces.</ListItem>
            <ListItem>CTP of work center WC-1 = Seven hours.</ListItem>
            <ListItem>One piece of component B and one hour of WC-1 is required to
			 produce one piece of A.</ListItem>
         </List>
         <Paragraph>If LN performs a component CTP check and a capacity CTP check for item A, the result
		  is 16 (CTP of component B limits WC-1).</Paragraph>
      </ExampleSection>
   </GeneralSection>
   <GeneralSection>
      <SectionTitle>Combined component CTP and capacity CTP - multiple
		periods</SectionTitle>
      <Paragraph>If you combine component CTP and capacity CTP, LN checks the
		components and capacity independently from each other, based on cumulative
		quantities. This implies that the critical capacity is not necessarily
		available at the same time as the critical component.</Paragraph>
      <ExampleSection>
         <SectionTitle>Example</SectionTitle>
         <Paragraph>The following example illustrates this limitation.</Paragraph>
         <List>
            <ListItem>t is the time for which LN performs a CTP check
			 for end item A.</ListItem>
            <ListItem>The offset for the required component B and capacity WC-1 is
			 three periods. Therefore, the component and capacity are required no later than
			 time (t-3).</ListItem>
            <ListItem>The cumulative capacity CTP of work center WC-1 on t-3 is
			 seven.</ListItem>
            <ListItem>The free capacity of seven hours that creates the cumulative
			 CTP is not on t-3, but earlier on t-4.</ListItem>
            <ListItem>Component B has cumulative ATP of six pieces on t-3 and zero
			 pieces on t-4.</ListItem>
            <ListItem>Component B is required to perform the operation on work
			 center WC-1.</ListItem>
         </List>
         <Paragraph>In this situation, the CTP check shows that you can produce
		  six pieces to be delivered on t, although the exact work center (t-4) and
		  component (t-3) availability do not fall in the same period. In fact, LN calculated the CTP
		  with the cumulative CTP figures only (the cumulative capacity CTP and the
		  cumulative ATP of the component).</Paragraph>
         <Paragraph>LN does not take the relationship between the component and the capacity into
		  account. In this case, LN indicates that you can promise the sales order on time
		  t.</Paragraph>
         <Paragraph>After you run the order planning, the work center WC-1 is
		  overloaded on t-3, but the total capacity load over all periods matches the
		  available capacity. This situation is the result of working with cumulated
		  quantities over multiple periods.</Paragraph>
      </ExampleSection>
      <Paragraph>This calculation method is considered correct, because <GUIRef href="/baanerp/cp" role="package">Enterprise Planning</GUIRef> is an
		infinite capacity planning tool. To perform order promising against finite
		capacity and consider all relationships between work centers and materials, you
		must use <GUIRef href="/baanerp.ops" role="package">Order Promising Server</GUIRef>.</Paragraph>
   </GeneralSection>
   <GeneralSection>
      <SectionTitle>Combined component CTP and capacity CTP -
		multilevel</SectionTitle>
      <Paragraph>If you defined multiple critical components and capacities on
		various levels of a bill of material in the same branch, each level adds a
		particular quantity to the total quantity you can promise to the
		customer.</Paragraph>
      <ExampleSection>
         <SectionTitle>Example</SectionTitle>
         <Paragraph>End item A is manufactured in work center WC-1, using
		  component B. Component B, in turn, is manufactured in work center WC-2 using
		  component C.</Paragraph>
         <Paragraph>Item B is a component. Therefore, on the <GUIRef href="/baanerp/cp/rpd/cprpd1100m000#cprpd1101sDF4" role="groupbox">CTP</GUIRef> tab of the <GUIRef href="/baanerp/cp/rpd/cprpd1100m000" role="session">Items - Planning (cprpd1100m000)</GUIRef> session, you must select the <GUIRef href="/baanerp/cp/rpd/cprpd1100m000#cprpd100.cria" role="manual">Critical in CTP</GUIRef> check box. At the same time, item B
		  is also a product. Therefore, you must also select the <GUIRef href="/baanerp/cp/rpd/cprpd1100m000#cprpd100.coat" role="manual">Component CTP</GUIRef> and the <GUIRef href="/baanerp/cp/rpd/cprpd1100m000#cprpd100.catp" role="manual">Capacity CTP</GUIRef> check boxes.</Paragraph>
         <List>
            <ListItem>ATP of A = 10.</ListItem>
            <ListItem>ATP of component B = Six pieces.</ListItem>
            <ListItem>CTP of work center WC-1 = Seven hours.</ListItem>
            <ListItem>ATP of component C = Four pieces.</ListItem>
            <ListItem>CTP of work center WC-2 = Three hours.</ListItem>
            <ListItem>On both levels, you need one piece of a component and one
			 hour of work in a work center to produce a product.</ListItem>
         </List>
         <Paragraph>If LN performs a component CTP check and a capacity CTP check for item A, the result
		  is as follows:</Paragraph>
         <TABLE width="100%" border="1" borderstyle="default"
                space-and-orientation="indented-estimated">
            <TBODY noTR="6">
               <TR no="1" isLast="false">
                  <TH colspan="2" rowspan="1">Multilevel CTP calculation</TH>
               </TR>
               <TR no="2" isLast="false">
                  <TH rowspan="1" colspan="1">Level</TH>
                  <TH rowspan="1" colspan="1">ATP</TH>
               </TR>
               <TR no="3" isLast="false">
                  <TD rowspan="1" colspan="1">Level 0</TD>
                  <TD rowspan="1" colspan="1">10 (ATP of A)</TD>
               </TR>
               <TR no="4" isLast="false">
                  <TD rowspan="1" colspan="1">Level 1</TD>
                  <TD rowspan="1" colspan="1">6 (CTP of component B limits WC-1)</TD>
               </TR>
               <TR no="5" isLast="false">
                  <TD rowspan="1" colspan="1">Level 2</TD>
                  <TD rowspan="1" colspan="1">3 (CTP of WC-2 limits component C)</TD>
               </TR>
               <TR no="6" isLast="true">
                  <TD rowspan="1" colspan="1">Total</TD>
                  <TD rowspan="1" colspan="1">19</TD>
               </TR>
            </TBODY>
         </TABLE>
      </ExampleSection>
   </GeneralSection>
   <GeneralSection>
      <SectionTitle>Combined component CTP and capacity CTP - multiple branches
		in the BOM</SectionTitle>
      <Paragraph>If you check various branches in the bill of material, the most
		restrictive branch determines the available quantity.</Paragraph>
      <ExampleSection>
         <SectionTitle>Example</SectionTitle>
         <List>
            <ListItem>You have a second component D on level 1, in addition to
			 component B.</ListItem>
            <ListItem>ATP of D is zero</ListItem>
         </List>
         <Paragraph>The branch of D restricts the complete branch of B. Therefore,
		  the total available quantity is 10 (ATP of A).</Paragraph>
      </ExampleSection>
   </GeneralSection>
</ManualTopic>