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    Shopify how-to July 16, 2026 4 min read

    How to Automate Size Chart Workflows with Shopify Flow

    Custom-fit routing. Return alerts. Fit surveys. No code.

    Triggers Available

    tsg/chart_opened — fires when a customer opens a size chart
    tsg/recommender_used — when size finder is used
    tsg/custom_measurement_submitted — for MTO orders
    tsg/return_initiated_size_X — for analyzing returns by size

    Actions Available

    tsg/tag_product — add/remove tags
    tsg/set_chart_metafield — assign chart programmatically
    tsg/send_fit_survey — trigger post-delivery fit survey email
    tsg/alert_merchant — Slack/email alerts on threshold

    Example: Auto-Route Custom-Fit Orders

    Trigger: tsg/custom_measurement_submitted
    Condition: order contains MTO product
    Action: add tag "custom-fit" → fulfillment app routes by tag → custom team picks up

    FAQs

    Shopify Flow integration?

    Yes — triggers + actions.

    Useful automations?

    Custom-fit routing, return alerts, fit surveys.

    Sizing on autopilot

    Tailor Size Guide ships Flow integration out of the box.