@maxT Thanks for the input.
I made the recommended changes, and both input’s resolve to the same output, but still all 4 items are passed through when it should only be 2 items.
Yes hints would help. Especially when one has very similar (identical most often) UI’s from node to node, all with gear icon that allow one to browse for expressions. There is no way to know what 1 node uses over another, for many nodes.
I am messing with the mock up data to insert an email address, which is why the last record does not have an email field. I am expecting the merge field to field match the 1st 2 records, and pass through the final 2 as the final 2 wont match with input, as input 2 is only bring in 2 records that both match with records 1 and 2.