Job woocommerce-checkout-after-update · revised 9 October 2026
Fix a WooCommerce checkout that broke after an update
Find and fix the one fault that stops customers completing an order after an update, proved with a test order on a copy of your store.
You might be seeing
- The Place order button spins, then nothing happens
- Customers see “There was an error processing your order”
- Test orders stop at Pending payment or Failed
- The checkout page is blank or shows a critical error
No passwords, keys, card details or admin invites needed to start.
What usually happened
After an update, customers can't complete an order: checkout hangs, shows an error, or leaves orders in the wrong state. The store loses sales while it stays broken, and it is rarely clear which of the recent updates caused it.
Who it’s for: Owner or manager of a WooCommerce store whose customers can no longer complete an order.
Usually starts when: An update to WooCommerce, a plugin, the theme, WordPress or PHP, after which orders stop coming through.
The result: One broken checkout path works again on a copy of your store: a test order goes through with the right total and status, and you get the fix with steps to apply and undo it.
Check whether this job fits
Six questions, about two minutes. Your answers stay on this page unless you choose to email them.
Checks you can run yourself
Look for fatal errors
In WordPress admin, open WooCommerce, Status, Logs and look for a log whose name starts with fatal-errors.
Look for: An entry from the time a checkout failed. It usually names the plugin or theme file involved; send us that line with paths and emails removed.
Check for outdated template copies
Open WooCommerce, Status, System status and scroll to the Templates section.
Look for: Files marked as outdated copies. A theme's old copy of a checkout template is a common cause after a WooCommerce update.
What you get
- The fix, as a patch or a list of plugin and theme changes, with steps to apply it
- A note naming the cause, with redacted log lines and before and after screenshots
- Rollback steps your site holder can follow
Included
- One failing checkout path you can describe, for example guest checkout paying by card
- Reproducing the failure on a staging copy with the payment gateway in test mode
- Finding which update or conflict causes it: a plugin, a theme template, WooCommerce or PHP
- The smallest change that fixes it, then re-testing checkout and the shipping, tax and order-email steps next to it
Not included
- Payment provider account problems, disputes or refunds
- Adding a new payment method or gateway
- Any live card charge or refund
- Repairing past orders or customer records
- Redesign, speed work or unrelated plugins
- A PCI compliance audit or ongoing monitoring
How we know it’s done
Agreed with you before work starts. Each check produces evidence you keep.
On staging, the agreed test product, address and test card complete checkout and create exactly one order with the correct total and status
Evidence: Order number, total and status, with a screenshot
A declined test card leaves no paid order behind
Evidence: Screenshot of the declined attempt and the order list
Shipping, tax and the order confirmation email are correct for the test order
Evidence: Redacted email and order totals
No new fatal-errors log entries appear during the test run
Evidence: Log listing for the test window
Sign-off. You sign off on the agreed staging test-mode result before payment. Live deployment and any real-order verification are separate client-authorised actions, not included tests or a charge we initiate.
If it fails. If the checks don't pass, you don't pay, and we hand over what we found so anyone can continue.
When it fits, and when we stop
It fits when
- You can describe one failing path: what the customer does, what should happen and what happens instead
- You or your host can make a staging copy where test orders are safe
- Your payment gateway has a test or sandbox mode you can turn on in staging
- Someone you authorise holds the hosting account and can apply the fix to the live store
We stop and tell you if
- The fault only appears with real cards, so it can't be reproduced in test mode
- Orders or customer data can't be copied safely to staging
- There are signs of a hack or a card-skimming script
- The payment provider's own service or account settings cause the failure
- Reproduction shows a cause outside the agreed path: we stop and re-quote, or hand over what we found
What could go wrong
Every change is a file or plugin-version change listed in the handover, so your site holder can reverse it. We don't change live data.
Scroll the table sideways to read it all.
| Risk | How we handle it |
|---|---|
| Test orders or emails reach real customers from the staging copy | Staging runs in test mode with outgoing customer email turned off before we test. |
| Payment keys or customer data end up in logs or our notes | We ask for redacted logs, never handle live keys and remove personal data before anything is stored. |
| The fix passes on staging but live differs: caching, versions or gateway settings | We confirm versions match first; your site holder places one real order to check live under your own account. |
| Rolling a plugin back reopens a security fix | We prefer a patch or a compatible version, and say so if a rollback is the only route. |
A second reviewer checks any change touching payment handling or customer data, and that your site holder can apply and reverse it.
How we deliver
We arrange the work and independent review, then show you the result against the agreed checks. You keep authority over your systems.
- Confirm the staging copy matches live versions, with the gateway in test mode and customer email off
- Reproduce the failing path and record it
- Isolate the cause by switching plugins and theme templates one at a time on staging
- Make the smallest fix and re-run the failing path plus shipping, tax and order emails
- Independent review of anything touching payment or customer data
- Hand over the fix, the evidence and rollback steps; your site holder applies it live
This is a one-off job, not emergency cover or a subscription. We confirm eligibility, the total price, a start window and a delivery date before you accept. Work starts only after agreed inputs, secure access, any licences and necessary permissions are in place. Hosting, platform and supplier charges are excluded unless the written quote includes them. No charge or booking is created by an enquiry.
Need to keep it working?
Discuss a test-mode checkout regression check before updates, with separate rules for alerts and live changes.
Ongoing work is separately scoped and quoted: no monitoring, response-time guarantee or automatic subscription is included in this job.
Explore an ongoing engineering lane, or mention the responsibility you need in your enquiry.
What you can check
This is a new service. We have not delivered this job for a client yet.
Other ways to get this done
- If the fault started right after one plugin update, rolling that plugin back to its previous version on a staging copy may be enough. Test an order there before doing it on the live store.
- If the failing extension came from WooCommerce.com or another vendor, their support may cover it while your licence is active.
Questions
Do you need my payment account or card details?
No. You turn on test mode in staging and enter the test keys yourself. We never ask for live payment keys or card data.
What if only real payments fail?
Then the fault can't be reproduced safely in test mode, and this fixed job doesn't fit. We'd say so and suggest starting with your payment provider.
Will you change my live store?
No. Your site holder applies the fix using our steps, and can undo it the same way.
How long does it take?
We haven't done enough of these to promise a turnaround. The quote gives a date before you agree to anything.
Start with an email
Send us
- The error text or a screenshot, with customer details removed
- The page and step where it fails, and what should happen instead
- When the last order went through, and what was updated since
- WooCommerce, WordPress, PHP and theme versions, if you know them
- Which payment methods fail, and whether test mode is available
Later, once you agree
- A staging copy shared the way you choose, such as an invite to your host's staging site
- Test-mode payment keys entered by you in staging; we never see live keys
- A staging admin login, not your live one
- A company-controlled secure handoff agreed before access: no live passwords, keys, private code or customer records by ordinary email.
You keep the live store, hosting account, payment account and admin logins. We work on a staging copy in test mode, and your site holder applies the fix to the live store.
Or write to hello@syntheticindustry.ai with “woocommerce-checkout-after-update” as the subject.