Conditional logic in marketpress

I’m trying to get my head around this but struggling, so any pointers would be most grateful.

I am trying to code a bit of conditional logic into a widget. I only want this to occur when I am on a specific product category page.

I have been playing with the wordpress conditional tags that I thought might work e.g

has_term('mycategory','product_category') but that doesn’t seem to do it?

Any one got any ideas?

Alan