If you set a line live with an override in place, not only is that individual line in jeopardy of under-delivering, but all of the lines that compete with the override line are also placed at risk of under-delivering. To avoid affecting delivery of competing lines, you can give the overbooked line a lower delivery priority number. By doing so, the ad server will deliver the higher-priority lines first, ensuring the competing lines will still meet their impression goals. The overbooked line will then be free to take remaining impressions.
The following features allow you to control the delivery prioritization across all of your ad campaigns.
If a line is designated as a takeover, the line will attempt to serve in every opportunity that’s available. Any other standard line types that are targeting the same audience as the takeover will not serve until the takeover line has delivered in full. Refer to Takeovers for more details.
If multiple lines of the same Campaign Type and Line Type are booked for the same time period targeting the same audience, the line with the higher-priority will serve first. Lines with lower priorities will only be eligible to serve when all lines with higher priorities are fully on pace.
A line item within a campaign can be designated as either a standard line or a takeover line. If the line is a standard line, the line will deliver the impressions that you specify. If the line is a takeover line, then your ads will take all the available space that matches the targeting dimensions, based on the logic described below. For placement of Ad Types within Apple News, see Ad placement, formats, and experiences.