How To Add Custom Creatives To A Line Item

Step 0: Find the line item to which you'd like to add creatives. Make sure all appropriate sizes are added, then click "Add Creative"

Step 1: Choose "Custom" from the New creative screen.

Step 2: Copy and paste the ad code into the biggest available text box and set the "Target ad unit size" option. Save the creative.

Note: You may get some warnings like the one below. No worries, typically. If you want to be sure you're doing things right, reach out to [e-mail] with the Creative URL and someone can doublecheck it for you.