Can you please let me know how "Compare Strings for Response Lookup" works? I'm under the assumption that when i receive a request, i can filter the argument/operation in the xml request and send responses from case response entries based on the criteria value set but when i tried it in v9.1, I'm unable to get the desired response. It always send the response from the vsi rather than the one which i configured in Response Lookup step. I tried overriding the lisa.vse.response property but that also failed. Could anyone let me know how this works? I'm attaching my VS for your reference.