What may you need to do to turn ad delivery back on?

Turning ad delivery back on often involves ensuring that the entire structure of the ad is active and functional. When an ad set is paused or stopped, it can be due to the parent campaign being inactive as well. By turning on the parent ad set and campaign, you effectively reinitiate the ad delivery process. This action is essential because ads operate within the context of campaigns and ad sets; if the higher-level structure is not active, individual ads will not run regardless of their individual statuses.

The other options, although they may affect the performance or visibility of an ad, do not directly address the issue of reactivating ad delivery. Recreating the ad set or editing content may enhance the effectiveness of the ads but that does not guarantee that delivery will resume if the overarching campaign settings are still paused. Increasing the campaign budget could potentially improve ad performance but without the campaign being active, it would not lead to actual ad delivery. Therefore, ensuring that the parent ad set and campaign are turned on is crucial for resuming ad delivery.