After I see the banner on a particular page by scrolling down to the button until i get it into my view port .A rule should fire in the Omnibug . How should I set the conditions for this .Please need your help.
In DTM, you will want to set up an Event Based rule.
In the "Conditions" , you will want to select "enters viewport" and provide the element tag/selector that needs to enter the viewport.
In this example (see screen shot below), when the attribute scrolled-to enters into the viewport and is in the viewport for 2000 milliseconds, then the rule will fire off.
Thank you Sarah. It fires the call .