How to trigger a sender.net autoresponder from Shopify POS

Shopify Apps

Topic summary

A Shopify Basic plan user is seeking an affordable way to trigger a Sender.net autoresponder when new customers are added via Shopify POS at art fairs. The native Shopify Flow feature requires a plan upgrade, which the user considers cost-prohibitive.

Attempted Solutions:

  • Fiverr freelancers (too expensive)
  • Make.com and Zapier (seeking cheaper alternatives)
  • Shopify Flow (blocked by plan limitations)

Recommended Solutions:

Option 1 - Mechanic App: Create a custom task listening for “customer/create” webhooks that sends data to Sender.net via API. Offers pay-as-you-go pricing without monthly fees.

Option 2 - Custom Webhook: Set up a webhook directly in Shopify (Settings → Notifications → Webhooks) pointing to Sender.net’s endpoint.

Option 3 - Make.com Free Plan: Use “Watch Customers” trigger, filter for POS sources only, then POST data to Sender.net via HTTP request.

One app vendor (AiTrillion) offered a $99/month solution, but the user rejected it as unaffordable. The discussion remains open with multiple viable technical approaches suggested.

Summarized with AI on October 23. AI used: claude-sonnet-4-5-20250929.
1

I have been trying to get a Fiverr gig worker to help me with this, but it seems that I have to pay an arm and a leg to get this completed. Need a simple (affordable) way when I am at an art fair (shopify pos transaction sale) and a new customer is added, that I can have a trigger set up to start an autoresponder (sender.net). There is no native way at present to do this without using other services. I set up an initial flow in Shopify Flow, but it won’t let me do a proper flow without upgrading to Shopify. I have the basic plan. Upgrading doesn’t make sense to me. Would an app like Mechanic work for this, or something like that? Have also tried to set up in Make.com and Zapier, but want something a bit cheaper right now.

2

Hello @Nathan16 ,

I hope you are well!

You can send the emails with the help of AiTrillion to the customers. With the help of AiTrillion, whenever customer is created using POS, the email will be sent to them. If you want to know more, feel free to let me know.

You can check our app by visiting - https://www.aitrillion.com/. Our minimum price of POS is - $99.

With POS, you will get Loyalty rewards, Reviews, Membership and many more modules which will be helpful for the customer engagement.

3

Thank you for replying but this is not an affordable solution.

4

Hey @Nathan16 :waving_hand:

You’re thinking in the right direction — upgrading your plan just to run one simple automation doesn’t really make sense. There are a few affordable (and even free) ways to get that autoresponder trigger working without paying Fiverr or Flow-level pricing.

:wrench: Option 1 – Mechanic App

Mechanic is perfect for this kind of use case. You can create a small custom task that listens for the “customer/create” webhook (which fires when a new POS customer is added), and then sends that customer data directly to Sender.net via a simple API call.

  • It runs automatically after each new customer is added.

  • You can fully control when and how it triggers (only for POS if you want).

  • They have a fair pay-as-you-go plan — no monthly app stacking.

:light_bulb: Option 2 – Webhook + Sender.net

If you’re comfortable adding a custom webhook, Shopify allows you to register one at:
Settings → Notifications → Webhooks → Create Webhook → Event: Customer Creation.
You can paste your Sender.net endpoint here (or through an integration tool like Make.com). This will instantly send customer info to your email tool every time a POS sale creates a new record.

:brain: Option 3 – Make.com (Free plan setup)

You can actually run this for free with Make if your volume is small:

  1. Trigger: “Watch Customers” in Shopify.

  2. Filter: Only include customers with source_name = pos.

  3. Action: HTTP POST → send data to Sender.net.

That gives you the same automation Flow would handle — without upgrading your Shopify plan.

So yes, Mechanic would definitely work, but Make.com can also get the job done if you’re okay with a quick setup.

:hammer_and_wrench: You can check out our Shopify Partner profile — we’ve built and shared several free Shopify app solutions to help store owners. Feel free to explore our profile and see how our apps can make your Shopify experience better!