Zapier vs custom automation: when to switch

What Zapier is great at

Zapier connects thousands of apps without any code. And for a lot of businesses it's the right tool, for things like:

• Sending form submissions into a spreadsheet or CRM.
• Posting a notification when a deal is won.
• Creating a task when an email comes in with a certain label.
• Testing an idea before you spend money on anything bigger.

If your automations look like that, stay on Zapier. It's quick to change, and anyone on your team can learn it.

How the pricing scales

Zapier charges by tasks. Zapier's own help centre says each successful action step counts as a task, and triggers, filters and paths don't. When you hit your plan's limit, new runs are held until the next billing cycle unless you pay for extra tasks.

So the sum is easy. Say you've got a five-action workflow that runs 1,000 times a month. That's about 5,000 tasks. Add a few more workflows like it and you're on a much bigger plan. Volume on its own isn't a reason to leave, but it is when you've also got the signs below.

Signs you have outgrown it

• Your workflows need branches, loops and lookups that are hard to follow on screen.
• Customers are the ones finding the failures. A step errors, nobody notices, and a client never gets their welcome email.
• Nobody owns the map. You've got dozens of Zaps built by different people, and switching one off feels risky.
• The data has to be exactly right. Payments, invoices, contracts and anything that has to happen once and only once.
• You're copying data back and forth between tools just so Zapier can move it.
• Customer messages depend on it. Emails and texts sent in your name, where a double send or a missed one loses you trust.

Side by side

Compared	Zapier	Custom automation
Set-up time	Hours	Weeks, set out in the written scope
Who can change it	Anyone trained on Zapier	A developer, or your team through settings we build in
Cost	Monthly plan based on tasks	Build cost, then hosting paid to the providers
Complex logic	Possible, but gets hard to read	Written and tested like any other software
Doing things exactly once	Depends on how each Zap is built	Built in from the start, so retries don't double up the work
When something fails	Error emails and run history	An alert to a named person, with the failed item held for them to check
Data	Passes through Zapier	Stays in your own systems

The middle route

You don't have to replace everything. A lot of times we see a setup where Zapier keeps the simple notifications, and the two or three workflows that really matter move into custom automation with proper monitoring. That's usually enquiries, bookings and payments. That takes away most of the risk and a lot of the task volume.

How we move a workflow off Zapier

1. List every Zap. Write down what starts it, what it changes and who relies on it.
2. Rank them by risk. Start with the ones that touch money, customers or legal records.
3. Rebuild the ones that matter. Add tests, retries that don't double up, and alerts when something fails.
4. Run the old and new side by side. Compare the results before you switch the Zap off.

Our workflow automation page explains the service, and our guide to what to automate first helps you work out what's worth building at all.

When is custom automation not worth it?

Stay where you are if you've got a handful of Zaps, they run a fair number of times a month, and a failure would be annoying but wouldn't lose you money. Custom automation costs more to build and you need a developer for bigger changes, so it has to earn that.

And wait if the process itself is still changing week to week. Zapier is the better tool while you're still working a process out, because anyone can change it in minutes. Move it once it's settled. Our approach starts with an audit that sorts your workflows into those two groups.