Hi,

We've recently moved to creating campaigns in the Target Standard UI, where previously we have been doing everything via Target Classic.

I've come across an issue where I'm unable to create a new Audience in Standard based on an mbox parameter. The mbox appears in the 'Search mbox' field, but when I click the drop down for 'Search parameter', I see the following error message: https://www.screencast.com/t/jl8vGk1jnCKK

I know that the mbox has multiple parameters assigned, and I can access them in Classic. 

Has anyone come across this before? What is the solution?

Thanks,

Chris