AI Agents8 min readUpdated 2026-06-29

Shopify Flow + OpenAI in n8n: The Playbook

Combine Shopify Flow with OpenAI in n8n for classification, drafting and enrichment at scale.

Key takeaways

  • Classify + draft + enrich + summarize.
  • Human-in-loop for writes.
  • Right-size the model per task.
  • Cache repeated prompts.

Shopify Flow + OpenAI is the most-requested combo we see. This playbook covers the four workflow shapes teams actually ship with them.

Classify

Every new Shopify Flow record → LLM classifier → tag write-back. Cheap, fast, transformative.

Draft

LLM drafts a next action; human approves; workflow writes back to Shopify Flow. Keeps humans in the loop.

Enrich

LLM extracts structured fields from unstructured Shopify Flow notes. Populate CRM fields you never had time to fill.

Summarize

Nightly summary of Shopify Flow activity, delivered to Slack. Ops leaders start their day informed.

Frequently asked questions

Which model?
GPT-4o-mini for classify/enrich; GPT-4o for drafting when quality matters.
Cost per record?
Fractions of a cent for classify; a few cents for drafting.
Prompt store?
Postgres or Notion — version prompts like code.
Guardrails?
Approval step + structured-output schema. Always.
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