Hi All

In K2 Designer I have a 'Set Variable' which needs to query data from a smartobject
Issue I have is that I need to return results based on null value

So in example below I need to get any results where function = 'Category' or function is null

I've tried to leave blank, and also send scnull but neither work

What I need in the filter options is 'Is blank' but that's not available

Can anyone help - thanks

Paul