export measure with range option

Hi,

I was trying to understand export measure with range option but confused in some portion.

User guide says "The range can only be specified for the innermost dimension."

When I'm creating a measure in config tool say m1 with Base Intx shows as day_item_str innermost dimension is str?

Because for the same measure when I do printmeasure it gives me below information

baseint:            str_itemday_

I tried to to an export of the above measure with intx as str_itemday_ and giving date range ; it worked but

When I tried to to an export of the above measure with intx as str_day_item and gave a item range it threw below error