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Expert Digital Marketing Ltd works from Docklands, on the Isle of Dogs near Canary Wharf. The postcode matters less than what comes out of it: software that runs real operations, built for businesses across the United Kingdom and the United States.

Much of our work now is agentic. We design and ship AI Agents that read, decide and act inside your existing systems, with a person signing off anywhere money moves. Where a process is well defined we recommend the cheaper thing instead and build Workflow Automation that follows the map, rather than paying a model to rediscover it on every run.

Our Shopify Development practice is deliberately narrow: the work most agencies turn down. We take Complex Shopify Apps through compliance webhooks and App Store review. We put pricing and delivery rules where the platform actually asks for them, which is the subject of our guide to Shopify Functions. And because checkout.liquid was retired in stages through 2025 and 2026, we spend a fair amount of time on Checkout Extensions, usually rebuilding what an automatic upgrade silently dropped.

Merchants moving to the platform get the same treatment. Our approach to Migrations & Replatforming starts with the URL map rather than the design, because redirects are where rankings are won or lost. Once a store is live, we would rather fix the four things that matter than sell a speed score, which is what Store Optimisation covers. The same thinking applies to Themes & Online Store 2.0, where an audit usually beats a rebuild.

Underneath all of it sits plain Custom Development. We help clients make the Build Or Buy call before a line of code is written. We connect the systems they already own through Systems Integration. And we specify Web Applications from the permission table up, because access control decides whether the thing is safe to ship.

Most engagements run remotely. If you are in London and would rather talk something through in person, say so in your message and we will arrange it. Either way, send the form above and you will get a straight answer.