Creating mapping for flat structure

Hi gurus!
I need to create a flat file from hierarchial XML:
Source:
<Header>
<Order>
    <Line>
    </Line>
    <Line>
    </Line>
    <Line>
    </Line>
</Order>
<Order>
    <Line>
    </Line>
    <Line>
    </Line>
</Order>
</Header>
Target:
<Header> </Header>
<Order> </Order>
    <Line>    </Line>
    <Line>    </Line>
    <Line>    </Line>
<Order> </Order>
    <Line>    </Line>
    <Line>    </Line>
The XI mapping is changing the order of the objects like that:
<Header> </Header>
<Order> </Order>
<Order> </Order>
    <Line>    </Line>
    <Line>    </Line>
    <Line>    </Line>
    <Line>    </Line>
    <Line>    </Line>
Is there any way to keep the order as is?

Malini Balasubramaniam thanks for the link.
Is there any "conventional" way to make the mapping? Without using the external mapping?
Edited by: LOS' on Oct 7, 2008 8:15 AM

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https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/46759682-0401-0010-1791-bd1972bc0b8a
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hi CS,
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Hi everybody,
I want to create an IDoc from a flat file.
The file structure looks like this:
MT_XYZ
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Hi Torben,
>>I want to create an IDoc from a flat file.
So you are using File content Conversion on the sender side. Right?
>>no information from the nodes "Node003" to "Node005" is inserted in the IDoc.
Are these information available in the source XML (you can check in transaction SXMB_MONI-> Input Payload).. There is a limitation in File Content Conversion of File adapter and it is that I can make an XML structure of 3 level.. Since these nodes details are in level 4 and 5 they should be missing in Source XML structure itself (after content conversion of File adapter). check that
>>So how can I set up the message mapping in a way that the information from "Node003" to "Node005" is transported to the IDoc? Can anyone help me here?
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http://www.riyaz.net/blog/xipi-file-content-conversion-for-complex-structures/
http://www.riyaz.net/blog/xipi-convert-flat-file-to-deeply-nested-xml-structures-using-only-graphical-mapping/
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