Question:

Shunsuke is an advertiser at a kitchen appliance company. He ran an awareness campaign to promote his brand’s award winning toaster. A few months after the campaign ended, he noticed that the baseline performance was overall higher on glance views and conversion rate across many of his products. What is this likely to mean?

Shunsuke’s brand’s presence had grown on Amazon as a result of the campaign from months prior.
There is a reporting error.
Another advertiser must be promoting Shunsuke’s brand.
Campaigns in the same category are driving awareness of Shunsuke’s brand.