How it works

Follow these 2 simple steps to start triggering Shopify Flow workflows from any external service or application

webhook icon

Webhook
App connector: Webhook • Time to complete: 0 minutes (Auto-configured)
Why this matters: This creates the entry point for external services to send data into your workflow, allowing any system to communicate with Shopify Flow through MESA.

This step sets up a webhook URL that external services can send data to. When you activate this workflow, MESA generates a unique webhook endpoint that accepts JSON data from any source - whether it's a third-party app, custom script, or another automation platform. The webhook receives the incoming data and passes it directly to the Shopify Flow trigger step. No configuration is required since the webhook automatically accepts and processes any valid JSON payload.

Shopify Flow logo icon

Pass data to Shopify Flow trigger
App connector: Shopify Flow • Time to complete: 1 minute
Why this matters: This step translates the webhook data into a format that Shopify Flow can understand and act upon, bridging external systems with your Shopify automation.

This step takes the data received from the webhook and formats it as a Shopify Flow trigger event. You'll need to configure which Shopify Flow workflow should receive this data by selecting it from your existing Flow workflows in the dropdown menu. The step automatically packages the webhook payload and sends it to your chosen Flow workflow, where it can be processed using Flow's built-in conditions and actions. This creates a seamless connection between external data sources and your Shopify store's automation.

Make it your own

Customize this workflow even further:

Set custom data filters
Add condition steps to filter which webhook data triggers your Flow workflows, such as only processing orders above a certain value or from specific customer segments.
Transform data before Flow
Use MESA's data transformation steps to modify, format, or enrich the webhook data before it reaches Shopify Flow, ensuring it matches your Flow workflow's expected format.
Connect multiple external sources
Create separate webhook endpoints for different services, then route them to appropriate Flow workflows based on the data source or content type.
Add notification layers
Include email, Slack, or SMS notifications in MESA before triggering Flow, so your team gets instant alerts about external events hitting your Shopify automation.

Frequently asked questions

Which Shopify Flow workflows can I trigger with this template?
You can trigger any existing Flow workflow in your Shopify store, including custom workflows you've built and Shopify's pre-built templates. The dropdown in the Trigger step shows all your available Flow workflows.
What format does the webhook data need to be in?
The webhook accepts any valid JSON payload. The data structure you send will be passed directly to your Shopify Flow workflow, so make sure it includes the fields your Flow conditions and actions expect to receive.
Can I use this to trigger the same Flow workflow from multiple external sources?
Yes, you can either use one MESA workflow with this webhook for all sources, or create separate MESA workflows for each external source if you need different data processing or routing logic before reaching Flow.
What is a template?
MESA templates are fully pre-configured workflows built and vetted by Shopify Experts. Unlike competitor templates that provide basic scaffolds requiring extensive setup, MESA templates come with all data variables properly mapped, required fields configured, and steps ready to activate. You can turn them on immediately and start automating.
Can I customize a template?
Absolutely! While our templates work out-of-the-box, every step can be personalized to match your exact business requirements. Add conditional logic, integrate additional apps, or build more sophisticated workflows. MESA's templates provide a solid foundation that you can expand as needed.
Are templates free?
Yes! Our entire library of expert-built, production-ready templates is free to use. Unlike platforms that charge for premium templates or provide only basic scaffolds, MESA gives you access to hundreds of fully-configured, vetted workflows at no additional cost.

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