Lookup value in conditional step of Web Form

Hi,

How to use lookup value as a condition in conditional step of the webform.

Example: Lets assume I have a lookup called 'Type'. it has 3 values customer , partner and employee. I have created a web form with 4 steps. After the first step, it should check the condition if the 'Type' lookup value is 'Customer' then the next step is 'Step 2' or else 'Step 3'.