BPM: XPath-Condition in Switch Step

Hello,
I have the following requirement in BPM.
There is a switch step with five branches, and I have the following document structure:
<Root>
<Segment>
<Docnum> 12345 </Docnum>
</Segment>
<Segment>
<Docnum> 12346 </Docnum>
</Segment>
</Root>
The switch condition is done based on the last digit of the first Docnum element. So in this case the value would be 5.
I tried to work with a substring as the total number of digits of docnum is always 5.
How would an XPath expression look like to retrieve the substring from the first <Segment> element? I tried different combinations but none of them really worked.
Example what I tried: p1:/root/Segment[1]/substring(docnum, 4,1)
Any advise on this?
Thank you very much

Try this...
substring(/p1:/root/Segment[1]/docnum,4,1)
for more info see
http://www.w3.org/TR/xpath
Message was edited by:
Alex

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BPM: XPath-Condition in Switch Step

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