Each campaign in your Google Ads account should have a single:

Each campaign in your Google Ads account should have a single business goal. Structuring campaigns around one clear objective — such as driving sales, generating leads, or building brand awareness — ensures that every element of the campaign (budget, bidding strategy, ad copy, landing pages) is aligned toward the same outcome. Mixing multiple business goals within a single campaign creates conflicting optimisation signals and makes performance measurement difficult. A campaign focused on a single goal allows Google's algorithms to optimise effectively and makes it easier to evaluate ROI.