How to merge two head message of datatable

Question

I want to use a h:dataTable ,most important I want merge two of the head part ,but the body part does not change on Datatable.who can help me !
it looks likes this:
<table>
  <tr>
    <td >head1</td>
    <td colspan="2">head2</td>
    <td >head3</td>
  </tr>
  <tr>
    <td >head2.1</td>
    <td >head2.2</td>
  </tr>
  <tr>
    <td >value1</td>
    <td>value2.1</td>
    <td>value2.2</td>
    <td>value3</td>
  </tr>
</table>my jsf code likes:
<h:dataTable id="persondocument"  value="#{mpbn0w010.dataModel}" var="dataModel" headerClass="table-title" rowClasses="table-inner-text-line1 ,table-inner-text-line2">
<h:column>
        <f:facet name="header">
          <h:outputText value="#{msg['mpbn0w010.order']}"/>
        </f:facet>
        <h:outputText value="#{mpbn0w010.orderNumber}"/>
      </h:column>
<h:panelGrid >
  <h:outputText value="#{msg['mpbn0w010.argappraiseamt']}"/>
   <h:panelGroup >
     <h:column>
        <f:facet name="header">
          <h:outputText value="#{msg['mpbn0w010.advancepercent']}"/>
        </f:facet>
        <h:outputText value="#{dataModel.advancePercent}"/>
      </h:column>
      <h:column>
        <f:facet name="header">
          <h:outputText value="#{msg['mpbn0w010.flag']}"/>
        </f:facet>
        <h:outputText value="#{dataModel.rewardPercent}"/>
      </h:column>
  </h:panelGroup >
      </h:panelGrid>
<h:column>
        <f:facet name="header">
          <h:outputText value="#{msg['mpbn0w010.amount']}"/>
        </f:facet>
        <h:outputText value="#{dataModel.advanceAmt}"/>
      </h:column>
</h:dataTable >here I just want to merge the head message ,but it does not work ,who can help me ?

Answer 1

Hi,
You can not change analysis period as per your request. Because every change you do in SAP is prospective & not retrospective.
By deleting & creating new one will might solve your problem.But I hope some data might be there in old cost center which you have to transfer first.This will have impact on your analysis period of new cost center.Check this scenario  carefully.
Regards,
Abhijit