Zapier or a Custom API Integration for an Indiana Business?

A Zap is right when a mistake is easy to spot and cheap to fix. A new form entry becomes a spreadsheet row, or a big job posts a message to your team chat. Nobody loses money if one of those runs twice or late.

Zapier's pricing suits that kind of work. Its help center explains that each action step that runs successfully counts as a task, while triggers and some built-in steps don't count. A two-step Zap that fires a few times a day costs very little and anyone on your team can change it.

If your tools already connect through built-in connectors, start there. Our inquiry automation page covers setting up routing rules and human handoffs inside the tools you already pay for.

Four things push a connection from a Zap into code. You only need one of them.

1. It's holding your business rules. Filter and path steps start deciding who gets which lead or which price applies. Those rules are hard to test inside a Zap, and a small edit can change them without anyone noticing.
2. It runs at volume. Every successful action step is a task, so a busy workflow with several steps adds up. Code steps inside Zapier also have limits: Zapier documents rate limits and runtime limits for Code by Zapier, and runs that hit a rate limit are held until it resets.
3. It carries sensitive data. Customer details pass through another company's service and its logs. If personal information is exposed, Indiana's breach notification law expects notice to affected residents without unreasonable delay and within 45 days of discovery, and the Attorney General has to be told too, according to Davis Wright Tremaine's summary of the statute. Fewer places holding that data means fewer places to worry about.
4. It needs a verified webhook. Payment and email services sign the notices they send so you can prove they're real. A codehooks.io write-up on securing automation webhooks points out that Zapier doesn't verify inbound webhooks, so the only protection is keeping the URL secret. Adding that check means putting a code step or a gateway in front of the Zap, and at that point you're writing security code on a platform built so you wouldn't have to.

Stripe signs every event it sends to your endpoint. Its webhook documentation has you compute an HMAC-SHA256 of the timestamp and the raw body with your endpoint's secret, compare it with the Stripe-Signature header, and reject old timestamps, five minutes by default, so a captured message can't be replayed later. Resend signs its webhooks the same way through Svix headers, and its verification guide says to use the raw body, because parsing and re-encoding the JSON breaks the signature.

Skip that check and anyone who finds the URL can send a fake "payment succeeded" or a fake "unsubscribe" to your system.

Here are three from our own systems, described in plain words. None of them is long, and none of them would be safe as a Zap.

• A phone call report. Our voice assistant runs on Vapi and reports qualified calls to an endpoint we wrote. It rejects any request without the right token and compares tokens in constant time, so response timing can't leak the secret. It refuses bodies over 16 KB or that take longer than 5 seconds to arrive, accepts only the fields it expects, and then asks Vapi's own API whether the call really happened before any alert goes out.
• Email unsubscribes. Our Resend webhook checks the HMAC-SHA256 signature over the message ID, timestamp and body, and rejects timestamps more than five minutes off, before it records an unsubscribe or a bounce.
• Paid scans. Our website scanner's Stripe webhook checks Stripe's signature before it starts a paid audit, and a unique database index means one payment pays for one scan.

Each of those needs a place to run and tests that prove it works. That's the part a custom build gives you. You can run a free scan on our website scanner to see the app those checks protect.

Often, yes. Put a small endpoint of your own in front of the part that matters. It checks the signature and applies your rules before it writes the record to your database. Then it hands a clean, checked event to a Zap for the convenience steps, like the team chat message or the spreadsheet row. You keep the easy part easy, and the part that touches money or customer data lives in code you can test.

Walk through these questions in order and stop at the first yes.

1. Does a built-in connector already do it? Use the connector.
2. Would a mistake cost you money or a customer? Build that connection in code.
3. Does it decide something with your rules, like a price or who gets the lead? Build the rule in code and keep the alerts in the Zap.
4. Does it need to check a signature or keep its own records? Build it.
5. None of the above? Keep the Zap.

If you landed on keeping it in your tools, see how we set up inquiry automation, and if the connection routes leads, our lead triage handoff guide covers the rules themselves. If you landed on building it, tell us about the connection and we'll scope it on a free call. Still unsure whether you need a developer at all? Read web designer or full stack developer first.