An advertiser is running a full-funnel strategy. The awareness campaign is driving a low cost per mille (CPM) and is pacing to deliver in full. The consideration campaign has low cost per click (CPC) and is exceeding its expected daily spend goals. However, the conversion campaign is driving low cost per action (CPA), but is not pacing to deliver in full. What should the advertiser do to make sure the conversion campaign spends in full?

The conversion campaign is not spending in full despite having a low CPA, indicating that the budget is available but not being fully utilized. Pausing underperforming Pins with high CPAs will reallocate the existing budget to more efficient Pins within the conversion campaign, allowing it to spend more effectively and reach its full delivery potential. Shifting budget from the awareness campaign might increase spend but doesn't address internal inefficiencies. Pausing the consideration campaign is a drastic measure that would disrupt the full-funnel strategy and doesn't directly solve the conversion campaign's internal pacing issue. Shifting budget from the conversion campaign would further prevent it from spending in full.