Each channel fixes a different problem. Hire for the one that limits the store now, then add the next. One check comes before all of them: if GA4, Meta and Shopify disagree so much that nobody trusts the numbers, start with marketing analytics and attribution experts.
Paid media (Google, Meta, TikTok)
The right first hire when the store converts the visitors it gets but doesn't get enough of them. Google Shopping and branded search capture demand that already exists. Meta and TikTok create demand, and they need a steady supply of new creative. New accounts go through a learning period before results settle, so ask how the specialist plans creative testing, not just bidding.
Email and SMS
The right hire when traffic is steady but too few visitors come back to buy. Build the core automated flows before adding more campaigns: in Klaviyo's 2026 benchmarks, flows earn nearly 18 times more revenue per recipient than campaigns. SMS is worth adding once the email program works.
Conversion rate optimization (CRO)
The right hire when visitors arrive but too few buy. Most of the work sits on product pages, the cart and, on Plus, the checkout. A/B tests need enough traffic to give a reliable answer, so a low-traffic store gets more from a CRO audit than from a testing program. Compare conversion rate optimization experts.
SEO and content
The slowest channel to pay back, and the one that keeps paying once it works. Technical fixes show up sooner than content programs. It suits stores whose products people already search for. For blog and landing page programs, compare content marketing experts.
Amazon and marketplaces
Worth it for products that can sell on a marketplace's terms: existing demand, and margins that survive marketplace fees and ad costs. Done badly, marketplace prices undercut your own store. The setup belongs with marketplace integration experts; ongoing growth needs a marketplace specialist.
Retention and lifecycle
The right focus once a store has enough customers for repeat orders to matter. Segments, win-back flows, subscriptions and loyalty programs turn first orders into repeat ones. It matters least in a store's first year, when there are few customers to keep. See loyalty program experts.