How should campaign structure be optimized to improve Quality Score when targeting both Japanese and English keywords related to the same product?

To improve Quality Score when targeting both Japanese and English keywords for the same product, the campaign structure should be segmented based on language to enhance relevance. Create separate campaigns or ad groups for Japanese keywords and English keywords. This allows for tailored ad copy and landing pages in each language. Using separate campaigns makes it simpler to manage budgets and targeting for the different languages. Ensure that the ad copy is written in the same la....