A clothing and accessories brand wants to upload its product catalog and start driving sales with a shopping campaign on Pinterest. What initial steps should the media planner recommend the client complete before getting started?

Implementing the Pinterest tag is crucial because it enables tracking of user actions on the website, such as purchases, add-to-carts, and page views. This data is essential for optimizing shopping campaigns, measuring ROI, and building effective retargeting audiences. Without the tag, the campaign would lack vital performance insights. Uploading the product catalog as a PDF file is incorrect because Pinterest requires a structured data feed (e.g., CSV, XML) for product catalogs, not a PDF. While leveraging the Pinterest API to upload the product feed is a valid method, it's typically a more advanced step after initial setup and tag implementation, and not the first recommended action for a new advertiser. Optimizing board titles for search keywords is a good organic strategy but doesn't directly enable the tracking and campaign functionality needed for a shopping campaign.