Crescentek

System Integrations

Make your tools actually talk to each other.

API integrations and middleware for Irish SMBs running multiple systems. Connect Xero to Shopify, HubSpot to your website, Stripe to your CRM — reliably, securely, with proper error handling. No more double-entry, no more mystery numbers.

Based in Ireland
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sync.crescentek.ie · 8 integrations · all healthy
Your business
Stripe
Xero
HubSpot
Mailchimp
Slack
Shopify
Google Cal
An Post
All syncs healthy
Last sync: Stripe · 2s ago
What disconnected costs

Four ways disconnected systems drain your team.

If two of these feel familiar, integration pays for itself — usually within a year, often within a quarter.

Data re-typed across systems

Staff entering the same customer in your CRM, accounting, and shipping system. Hours lost weekly, errors guaranteed.

Two systems, two different numbers

Sales says one figure, accounts says another. Meetings start with 'whose data is right?' instead of decisions.

Zaps that break every week

A no-code chain held together with hope. When it fails, nobody notices for days — and nobody can fix it.

Sensitive data flying uncontrolled

Customer info emailed between tools. GDPR exposures. No audit trail of who touched what.

Three integration categories

Finance, customers, operations — the three areas integration pays back fastest.

Most Irish SMB integration projects fall into one of these. Pick the one causing most friction, fix it first, expand from there.

Finance & payments

Money in, money out, tracked

Stripe / Revolut / SumUp syncs
Xero / Sage / QuickBooks
Invoice generation & reconciliation
VAT handling across tools
Expense and receipt flow
CRM & customer data

One customer record, shared

HubSpot / Pipedrive / Salesforce
Form → CRM → email sequence
Lead scoring and routing
Contact deduplication
Unified customer timeline
Operations & inventory

What you have, where it is

Stock sync across channels
Shopify ↔ WooCommerce ↔ POS
Shipping labels (An Post, DPD)
Warehouse/3PL APIs
Supplier and PO integrations
How we build integrations

Clean first. Build solid. Monitor always.

Four phases. The audit and monitoring are usually what separates integrations that last from ones that silently rot.

Audit & reconcile

Before building any sync: find the duplicates, format mismatches, and stale records across tools. Clean baseline first — always.

Build the right way

Native APIs where possible, custom middleware where needed. Proper error handling, retries, logging, and alerts from day one — not added later.

Monitor & alert

Every sync is logged. Failures trigger notifications. Dashboards show what ran when. You know before customers do when something breaks.

Maintain & evolve

APIs change, business needs shift, new tools get added. Ongoing retainer keeps it all working — or you take it in-house with full documentation.

Is it a fit?

Integrations only help if your data's worth connecting.

If your tools aren't yet the right ones, integrating them won't save you. Here's when integration makes sense.

Right fit
We should talk if…
Your team wastes hours re-typing the same data
You use 3+ tools that don't talk to each other
Reports take a person a day to compile
You've got reliability issues with no-code chains
You want proper audit trails and GDPR-safe flows
Not a fit
We'll point you elsewhere if…
You only use one or two tools — integration unnecessary
You've not yet chosen your tools — pick them first, integrate after
You need a totally different tool — see Custom Systems
You want real-time sync with no willingness to pay for infrastructure
Tech we build with

Native APIs where possible, custom middleware where needed.

Native REST / GraphQL APIs
Stripe / Revolut / SumUp
Xero / Sage / QuickBooks
HubSpot / Pipedrive / Salesforce
Make / Zapier / n8n
Custom middleware (Node / Python)
Supabase / Postgres
Cloudflare Workers / serverless
What we typically connect

Common integration scenarios.

The syncs that remove the most friction for Irish SMBs.

CRM to accounting sync
E-commerce to inventory
Multi-channel stock
Web forms to CRM
Payment to reconciliation
Email marketing syncs
Shipping API integrations
Data warehouse / BI feeds
Common questions

Integration questions, honestly answered.

The questions Irish SMBs ask us most often.

Depends. If the two tools have a native integration that fits (e.g., Shopify ↔ Xero), we use it first — less to break. For anything custom, we prefer real API integrations over no-code tools because they're faster, cheaper at scale, and more reliable. We'll tell you honestly when Zapier is the right answer — sometimes it is.
Built-in error handling, retries, and alerting. We log every sync, notify you when something fails (Slack/email), and have fallback handling where possible. Most API breakages are caught and fixed before you notice. For critical flows, we build in circuit-breakers that pause gracefully rather than corrupt data.
Almost never, actually. Real-time is expensive and often unnecessary. Most flows work fine on 5-minute or 15-minute intervals — which is 'real-time enough' for humans. We default to scheduled syncs and only use webhooks for genuinely time-sensitive events (payments, stock-outs, urgent alerts).
First job: clean it. We run a full reconciliation before building any sync — identifying duplicates, format mismatches, orphaned records. The integration goes live on a clean baseline. Syncing dirty data just spreads the mess faster.
Simple two-tool syncs: 1-3 weeks including testing. Multi-system integrations with business logic: 4-8 weeks. Full data warehouse / BI feeds: 2-3 months. We scope honestly after we've looked at the actual APIs and your data — not before.
Yes, via monthly retainer. Covers API changes, monitoring, minor updates, new fields. Some clients bring it in-house after launch — we document everything so that works. No vendor lock-in.

Tired of systems not talking to each other?

Free 30-minute call. Show us the stack — we'll tell you honestly what's worth connecting first and what can wait.

Reply within 1 working day GDPR compliant Based in Ireland