Flow looks simple in the editor: pick a trigger, add a condition, choose an action. The trouble shows up later, when two workflows tag the same order differently or one condition silently filters out everything. Most of what a good expert does is design, not clicking.
Operational workflows. Order tagging, fraud holds before fulfilment, low-stock alerts to whoever reorders, customer tags built from order history, and scheduled jobs that tidy data overnight. Flow writes to tags and metafields and works with B2B, so most of this needs no code.
Shopify Flow integration with outside systems. The Send HTTP Request action lets a workflow call an external API, such as an ERP or an internal tool. It runs on Grow, Advanced and Plus, not Basic. Where an app already ships a Flow connector, an expert uses that and saves custom requests for systems that have none.
Run code and Liquid. The Run code action, added in January 2024, runs JavaScript inside a workflow and hands the result back to later steps. Liquid logic sits inside actions and messages. A short script often replaces a tangle of nested conditions, and this is where experts who actually write code earn their rate.
Tidying Sidekick drafts. Since December 2025, Sidekick can generate a workflow from a plain-language description. It's a reasonable first draft. Shopify itself says workflows with advanced Liquid or custom code may need manual editing, and someone still has to confirm the trigger is the right one.
Audits and documentation. An audit maps what each active workflow does, what it depends on and where two of them overlap. The deliverable that matters most is the written register at the end, so the next person isn't reverse-engineering your automations.