You own a small business that sells scented candles. You’re ready to run your first Smart Shopping campaign that uses a set budget. How does the system allocate budget on a Smart Shopping campaign?

Budget is automatically allocated across channels, based on performance. You don’t need to create a separate campaign for each channel.
Budget is manually allocated across channels, based on your channel preference. You have control over the campaign setup while manually optimizing by channel.
Budget is manually allocated by campaign, so you’ll need to create a separate campaign by channel and budget.
Budget is automatically allocated by campaign, so you’ll need to create a separate campaign by channel, and Smart Shopping will optimize budget.