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Fiverr Pro
English
$
USD
I will fix shopify webhook, checkout shopify api, payment gateways and whop integration
Steven C
About this gig
Shopify webhooks not firing? Checkout throwing errors? Whop payments not syncing to your store?
I find the break and fix it. I trace the full flow: Shopify checkout, payment, webhook, order, then Whop or your backend. You get a tested fix and a plain English explanation of what went wrong.
WHAT I FIX:
- Shopify webhook failures: missed events, timeouts, HMAC signature errors, removed subscriptions
- Shopify API errors: authentication, scopes, payloads, rate limits
- Checkout and payment gateway connection errors
- Whop webhook, checkout and order sync problems
- Integrations that broke after an app, API version or code change
- Missing or duplicate orders, failed payment events, checkout redirect problems
- Safe access: collaborator access only, never your password
HOW IT WORKS:
- Send me the error, screenshots or logs
- I confirm the cause, scope and price
- I fix it, test the full order flow and send a summary
Not sure it is fixable? Message me first. I will tell you honestly, including if a request conflicts with Shopify's payment rules.
Shopify webhook, Whop integration, Shopify checkout, Shopify api, Payment gateway, Webhook not firing, Shopify api error, Checkout error, Shopify order sync.
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Get to know Steven C
Steven C
Game Modding ! AI Automation ! SaaS ! Shopify ! Bots ! VoIP ! Custom Development
- FromUnited Kingdom
- Member sinceSep 2026
- Avg. response time2 hours
- Last delivery1 week
Languages
English, French, Spanish, German
Welcome. I am a full stack developer specializing in advanced automation, AI SaaS and game modding. Need custom Minecraft plugins, FiveM servers or high performance mods for Skyrim, Cyberpunk, GTA 5 and Fallout 4? I’ve got you covered. I also build powerful checkout bots, automate Shopify/Whop payment gateways and design AI driven SaaS platforms with OpenAI/GPT integration. I also deploy robust VoIP systems (3CX, Twilio, Telnyx) and smart AI voice agents. From deep bug fixes and FPS optimization to custom scripts, I deliver clean, scalable solutions.
Let's build your dream project today.
FAQ
Can you fix a Shopify webhook that is not firing?
Yes. I check the subscription, endpoint URL, response time and HMAC verification. Shopify expects a fast 2xx reply and repeated failures can remove the subscription, so I fix the cause and re-register it if needed.
Do you work with Whop?
Yes. I fix Whop webhooks, checkout links and payment events such as payment succeeded or failed, and sync them to Shopify or your own backend. I need API access or a test setup.
Can you add any payment gateway to my Shopify checkout?
Not always. Shopify limits which gateways work in checkout by country and plan. I check what your store supports first and tell you honestly before you pay for something Shopify will not allow.
What do you need from me to start?
The exact error text, what should happen vs what happens, and screenshots or logs (webhook delivery log, API response). Give me collaborator access, never your password.
Is my store and payment data safe?
I never need customer card details. I use test orders where possible, keep API keys out of chat, and you can revoke my access as soon as the work is done.
How long does a fix take?
Most single issues are diagnosed within 24 hours and fixed in 1 to 2 days. Multi-step integrations take longer. I confirm the timeline before I start.
What if you cannot fix it?
I will tell you early, before deep work, if the issue is outside my scope or blocked by a Shopify or Whop limitation. Message me before ordering so we can confirm.
My integration broke after an update. Can you help?
Yes, this is common. API version changes, app updates and changed permissions can silently break webhooks and payloads. I find what changed and restore the flow.
Do you build new integrations, not just fixes?
Yes. Premium covers a new or rebuilt Shopify and Whop order sync with webhooks, retry handling and logging. For larger custom builds, message me for a custom offer.
Do you provide documentation?
Standard and Premium include a written summary of the cause and fix. Premium adds setup notes so you or your developer can maintain it.
