Barkingdog,

You have a couple options for getting the variable placed in the body. One, leave the MessageSourceType as Direct Input and add an expression that sets MessageSource to the variable. Two, set the MessageSourceType to Variable and select the variable.

Specifying 0 for the result name is just a requirement when returning that type of result set.

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kurraraghu,

The SecondOperand is an XPath query that uses the count function. The query doesn't use parameters so mappings aren't needed.