XPATH Expression in ICO for Exists

Hi,

Currently i am routing messages in an ICO for two different interfaces from a single source. This condition is at the Receiver Interface level as both belong to the same Business System.

The structure goes by this,

MT_BatchProcess

       BatchProcess

            LineType1

            LineType2

            LineType3

            LineType4

Condition: If LineType2 exists, then run the interface for ReceiverInterface 1

                If LineType3 and LineType4 exists, then run the interface for ReceiverInterface 2

XPATH Expression:  Type: String              Multiline: Checked

/MT_BatchProcess/BatchProcess[count(LineType2 >0 ]  EX      ----> ReceiverInterface 1

/MT_BatchProcess/BatchProcess[count(LineType3 >0 ]  AND /MT_BatchProcess/BatchProcess[count(LineType4 >0 ] EX   ----> ReceiverInterface 2

Somehow, this condition is not working in my case. Could someone help me find out what is that i am missing in these conditions.

Many thanks,

Sherin Jose