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Xero Integration · Cardiff

Xero Integration in Cardiff

Connecting Xero to the other systems a Cardiff business runs, so invoices, payments and contacts stop being rekeyed. Xero's API is capable and rate-limited, which matters more than it sounds — a naive integration pushing a day's invoices in a loop will hit those limits and stop partway.

Why this comes up

The problem

Sales are recorded in one system and invoices are created again in Xero by hand. Payments are matched manually, and month-end starts with reconciling two versions of the same activity.

What you get

What we deliver

  • Invoices created from your source system automatically, with correct tax treatment
  • Payments and settlements reconciled, including processor fees as separate lines
  • Contacts synced without creating duplicates in either system
  • Nominal and tracking codes mapped so reporting stays meaningful
  • Rate limits respected through batching and queuing rather than retry storms
  • Failures surfaced to whoever does the books, not buried in a log

Want this scoped for your business in Cardiff?

Thirty minutes, no charge, no sales script. You leave with a written summary of what xero integration would actually involve — whether or not you use us.

Book a 30-minute call

Working in Cardiff

Wales

Cardiff has a significant broadcast and media sector alongside a large public-sector presence, and Welsh-language provision is a genuine requirement on public-facing work here rather than a nice-to-have.

Public sector and broadcast work is common, and bilingual provision is usually a requirement rather than an option.

Sectors we work with in Cardiff

  • Media & Broadcasting
  • Financial Services
  • Public Sector
  • Higher Education
  • Sport

What we work with

Technologies and platforms

  • Xero API
  • TypeScript
  • Node.js
  • PostgreSQL
  • OAuth 2.0

Who we work with

Industries we serve

  • Professional services
  • Ecommerce
  • Construction
  • Hospitality
  • Retail

Why us

Why Cardiff businesses choose Asionis

  • Projects typically launched within 4–8 weeks
  • No long-term contracts required
  • All team members UK-based
  • Dedicated account manager and development team
  • Transparent reporting with monthly performance metrics
  • Scalable from startup to enterprise

How we work

  1. Step 1

    Free consultation

    A 30-minute call to understand the problem. You keep the written summary either way.

  2. Step 2

    Proposal

    Scope, timeline and a fixed price, in writing, before anything starts.

  3. Step 3

    Build

    Short cycles with regular check-ins, so you see progress rather than hear about it.

  4. Step 4

    Launch and support

    We handle the go-live and stay available afterwards.

Xero Integration in Cardiff — common questions

What usually breaks a Xero integration?
Rate limits and OAuth token expiry. Xero caps calls per minute and per day, so bulk pushes need batching and queuing. Tokens also need refreshing on schedule — an integration that only refreshes after a failure will fail first, usually at month-end.
How should VAT be handled?
By mapping tax rates explicitly from the source system rather than relying on defaults. Getting it wrong produces returns that need correcting, and since Making Tax Digital requires digital record-keeping, the mapping is worth agreeing with your accountant.
Can it handle payment processor fees?
Yes, and it should. A Stripe or PayPal settlement arrives net of fees, so posting only the net figure understates both revenue and costs. Splitting gross and fee into separate lines is what makes bank reconciliation match without manual adjustment.
Will it create duplicate contacts?
Only if matching rules are not defined. Xero matches on name by default, which produces duplicates the moment a name is entered slightly differently. Matching on your own identifier is more reliable and worth setting up first.
Do you work with businesses across Cardiff?
Yes. We are based in Leicester, United Kingdom and work with clients throughout Wales, including Cardiff and the surrounding Cardiff area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
What kind of Cardiff businesses do you usually work with?
Public sector and broadcast work is common, and bilingual provision is usually a requirement rather than an option. Beyond that we work across Media & Broadcasting, Financial Services, Public Sector, Higher Education and Sport.
Do you cover the areas around Cardiff?
Yes — we work throughout Wales, including Bristol, Swansea. Cardiff is an urban area of roughly 490,000+, and we take on work across the wider Cardiff region rather than the city boundary alone.

Talk to us about Xero Integration in Cardiff

A 30-minute call with someone who would actually work on it. No sales script, no obligation.

  • Projects typically launched within 4–8 weeks
  • No long-term contracts required
  • All team members UK-based
  • Dedicated account manager and development team
  • Transparent reporting with monthly performance metrics
  • Scalable from startup to enterprise

Or reach us directly

07707 771599admin@asionis.com

Leicester, United Kingdom