Which practice is recommended for setting up a Performance Max for omnichannel goals campaign?

Segmenting products by performance and business goals is crucial for optimizing Performance Max campaigns for omnichannel goals. This allows you to allocate budget and focus to products that are most important for your business objectives (e.g., high-margin items, new arrivals) or those that have demonstrated strong online or offline performance. This strategic segmentation ensures your campaign resources are used effectively to drive desired outcomes. Including all products from the local product inventory feed or local product feed without segmentation can dilute campaign effectiveness by spreading budget too thinly across less impactful products. Segmenting by availability and product type can be useful for other campaign types but is less directly aligned with optimizing for overall business performance and goals in an omnichannel context.