What is the structure of the document you are using in your trigger?
If it contains a StringList, which element(s) of the List are you filtering on?
If your document structure is as follows:
MyDoc
→ StringList
→ string
You can reference each element of your stringList in the trigger as follows:
%MyDoc/StringList[0]% L_EQUALS "value" && %MyDoc/StringList[1]% L_EQUALS "value2" etc
#broker#Universal-Messaging-Broker#Integration-Server-and-ESB#webMethods