The problemYour Shopify orders are not all reaching QuickBooks, and nobody has noticed yet.
In shortAPI integration services connect the software a business already uses, such as Shopify, Stripe, QuickBooks, Xero, HubSpot or Salesforce, so orders, payments and customers sync automatically instead of being retyped. They suit small teams whose connector misses records, creates duplicates or has outgrown Zapier. We build them from $1,800, usually in 1–3 weeks, with retries and failure alerts.
Someone on your team spends hours a week copying orders, payments and contacts from one app into another. The connector that was supposed to do it misses a few records a month, says "success" when nothing happened, or creates the same order twice when a webhook fires again. You find out at month-end, from the accountant, or from a customer.
Connecting two systems takes an afternoon. Keeping them connected takes design: what happens when one side is down, when a record arrives twice, when someone edits it in both places, and when the vendor changes its API. We build the sync logic, retries and alerts that keep the data trustworthy, and we can audit and repair the connector you already have.
Maintained by Haider Ali, Founder & CEO · Updated
These are the problems that bring people to API integration services. Each one has a specific fix.
Revenue and sales tax in the books are wrong, and the bookkeeper hunts the gap order by order. One store reported 183 of 1,629 orders missing over a year.
What we doWe reconcile both sides daily by order ID, backfill anything missing, and alert a person the day a record fails instead of at tax time.
Weeks of sales stop reaching accounting or messages never send. It is found late, by a customer or an accountant, and fixing it means re-entering everything by hand.
What we doEvery run checks the result on the other side, not just the status code. Failures are reported with the record and the reason, plus a daily check that both systems agree.
Per-task pricing means every new order or contact costs more, plans keep going up as you grow, and zaps stop when the limit is hit.
What we doFor high-volume flows we build a custom integration on fixed hosting, so the cost does not climb with every record. For simple flows, we will tell you to keep Zapier.
Orders shipped twice and customers charged or subscribed twice, followed by refunds and apology emails.
What we doWe store each event and external ID and process it once, with idempotency keys on every write, so a repeated event is recognized and skipped.
Duplicate contacts, invoices against the wrong customer, and sales and finance arguing over whose list is right.
What we doWe decide which system owns each field before the build, match records on stable IDs and merge duplicates during the backfill.
Two vendors each blame the other, support tickets wait a week, and the manual workaround becomes permanent.
What we doWe read both APIs, find where the existing connector fails, and either repair it or replace it with code you own, documented and in your accounts.
We would rather tell you now than take the project and disappoint you.
| Starts from | $1,800; most two-system integrations land between $1,800 and $4,000 |
|---|---|
| Typical timeline | 1–3 weeks |
| Best for | Stores, service businesses and SaaS teams of 5–50 running Shopify or Stripe with QuickBooks, Xero, HubSpot or Salesforce |
| Not for | Flows a native integration or a Zapier template already handles well |
| What you get | Sync rules, duplicate protection, retries, failure alerts and a backfill |
| Also offered | An audit and repair of the connector you already have |
| What you own | The code, in your repository, with API keys in your own accounts |
| How pricing works | A fixed quote once we have read both APIs |
Worth knowing: Two-way sync is where most integrations go wrong. When both systems can edit the same record, you need a rule for who wins, decided before the build. "Last edit wins" sounds fair and quietly destroys data; deciding which system owns each field is usually the answer.
Which system owns each field, how often data moves, and what happens on conflict, written down and agreed first.
Events received, signature-verified and processed once, with polling as a safety net for the ones that never arrive.
Idempotency keys and stored external IDs, so retries and repeated events do not create duplicate customers or charges.
Queued requests and backoff, so large syncs finish instead of being throttled halfway.
Failed syncs reported with the record and the reason, plus a daily check that both sides still agree.
Historical data moved across once and checked, then kept in sync from then on.
OAuth with the narrowest permissions each job needs, secrets kept out of the code, and card data left with Stripe or PayPal.
A 22-second look at an API integration we build: Shopify orders reach QuickBooks and HubSpot once each, duplicates are caught, and failures alert a person. From $1,800, 1–3 weeks.
Some Shopify orders never reach QuickBooks. Nobody noticed. Sales tax in the books is wrong. The sync says success. Nothing happened. One webhook, two orders shipped. There’s a better way. API integration with duplicate protection and alerts. Webhooks and polling done right. Duplicate protection on every order. Monitoring with alerts to you. From $1,800 · 1–3 weeks · fixed quote. Get a fixed quote. pixelandoak.com/services/api-integration
Keep the simple option if it works. This is roughly how the three choices compare:
| Option | Best for | Cost as you grow | Where it strains |
|---|---|---|---|
| Native app or marketplace connector | Standard one-way flows | Often free or a small monthly fee | Missed records, one-way stock and slow support |
| Zapier or Make | Simple flows at modest volume | Rises with every task or operation | Duplicates, two-way sync and silent failures |
| Custom API integration | Two-way sync, high volume, complex mapping | Fixed build from $1,800, then hosting | Someone has to maintain it |
Keep Zapier if your flows are simple, low volume and a missed record would not hurt. Move to custom when volume makes per-task pricing painful, when you need two-way sync, or when a failure costs real money. Check current plan prices on each vendor's pricing page, because they change.
These are examples of what the work looks like, not a list of past client projects. We confirm what each API allows before quoting.
Your CRM usually sits in the middle: leads come in from the website, deals turn into invoices, and finance needs to know who has paid. We connect HubSpot and Salesforce to accounting, ecommerce and forms through their official APIs, and agree which system owns each field first, so the CRM and the books stop disagreeing about customers. We are not a HubSpot, Salesforce or Shopify partner; we work from their public documentation.
Deliberately mainstream choices. You should be able to hand this to any competent developer later without them needing to learn something exotic first.
Next.js, React, TypeScript, Tailwind CSS
Node.js, Next.js API routes, Cloudflare Workers
Postgres, Supabase, Cloudflare D1 and KV
Sanity, Payload, headless WordPress, or plain Markdown
Stripe, Shopify, WooCommerce
OpenAI, Anthropic, and open models where they fit better
Vercel, Cloudflare Pages — in your account, not ours
Plausible, Fathom, GA4, Search Console
Not sure whether an integration is what you actually need? Send over what you are trying to fix and we will tell you straight — including if a smaller job would do it.
Ask us first →Both APIs reviewed for limits, authentication and the awkward cases before we quote.
Field ownership, frequency and conflict handling written down and signed off.
Tested against sandbox accounts and real data, including outages and duplicate events.
Alerts set up at launch so a broken sync reaches a person, not a customer. Ongoing watching is part of a support plan.
AI agents from our Engineering and Quality & Security divisions do the work, in parallel. Haider Ali, founder and CEO, agrees the plan with you and signs off everything before it reaches you.
Real work that uses the same skills. Every card links to something you can open and inspect yourself.
Integrations between two well-documented systems start at $1,800 and usually land between $1,800 and $4,000. Two-way syncs with conflict rules, large backfills or poorly documented APIs cost more. The quote is fixed once we have read both APIs' documentation.
One to three weeks. A one-way sync between two well-documented systems sits at the short end. Two-way sync with conflict rules, a large historical backfill or an API with thin documentation sits at the long end. You get the timeline with the fixed quote.
Common ones are Shopify orders posted to QuickBooks or Xero, Stripe payouts split into sales and fees in accounting, HubSpot deals creating invoices, website forms creating CRM contacts, and booking changes sending text reminders. Each moves data automatically so nobody retypes it.
Zapier for simple one-way flows at modest volume. Custom when you need two-way sync, high volume, complex mapping, or reliability you can monitor. We will tell you which one your case needs, including when the answer is Zapier.
Usually the connector failed on certain orders, such as ones with unusual tax, discounts, refunds or products it could not map, and did not tell anyone. We compare both sides by order ID, find the pattern, backfill the missing orders and add alerts so it cannot happen silently again.
Treat every webhook as something that may arrive more than once. Store each event ID, skip any you have already processed, and send an idempotency key with every write to the other system. We build that into every integration, so a retry is harmless.
Often, yes. We start with an audit: count the missing records, find the duplicates and work out why they happen. Sometimes a settings change or a small repair is enough. If the connector cannot be trusted, we replace it and backfill what it missed.
Most major vendors, such as Stripe, HubSpot and Shopify, version their APIs and announce breaking changes ahead of time. We pin versions, and monitoring is set up to flag failed records and daily mismatches. On a support plan, we also watch deprecation notices and update before anything breaks.
You do. The code lives in your repository, the API keys sit in your own accounts, and you get written documentation on handover. Any developer can pick it up later, and nothing depends on us staying involved.
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