Xpath in the collect message of BPM

Question

Hi,
I created a BPM collect message. My source message has a field which is in the format of XXXX-NN such that XXXX can be any 4 letters and NN is a number 01 - 99. In the loop of the BPM, I made use of an Xpath command in the condition editor for the loop condition. The command is /header/segment1/segment2[(substring(field1,6,2))] for the left hand operand and comparing it as not equal to a counter variable.
When I look at my graphical workflow log, there is an error in the Transformation step. In SXMB_MONI, I have a red flag with an error of "Message has error status on outbd. side" in the process view of SXMB_MONI.
If I change the Xpath command to /header/segment1/segment2/field1 and change the value of my field to just use NN without changing anything else, my BPM is working properly. Is there something wrong with the added Xpath command? I followed the blog in /people/shabarish.vijayakumar/blog/2006/06/07/customise-your-xpath-expressions-in-receiver-determination but I wonder if this only works for Receiver Determination. Please help.
Regards,
Elbert

Answer 1

Hi Elbert,
the expression
means a condition and requires a
=
For example:
[//person/name[../no='123'] code]
means: select element person/name where person/no "123" is.
Because of unclear results regarding the namespace i wouldnt put the full path. Use for example [code]substring(//segment2/field,6,2)
The substring expression is ok, i m shure.
<b>substring(X-Path on String value, No of letter in string, length of searched substring)</b>
If the string is not long enough, it might give you strange errors, he, he. Cant cut 1m of 20 cm salami.
Regards,
Udo