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WassliSystems
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WassliSystems
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Platforms

Xero, kept in step with sales and the store.

Xero is common across UK clients and growing in the UAE. We connect it to CRMs and Shopify or WooCommerce through the Xero API, respecting its rate limits and the way accountants actually use tracking categories.

  • Xero Accounting API
  • OAuth 2.0
  • Webhooks
  • Tracking categories
  • Branding themes
  • Bank feeds

01 — The problem

Accountants in Xero, sales elsewhere.

Invoices are raised in Xero by finance from emails sent by sales. Discounts and payment terms get lost, and sales chases customers who already paid.

The Xero API allows 60 calls per minute and 5,000 per day per organisation. Bulk syncs and store order volumes hit those limits quickly unless the integration batches and queues properly.

02 — What we build

What the engagement delivers.

Contact sync

CRM accounts and contacts mapped to Xero contacts with contact groups, payment terms and default tax rates.

Invoices and credit notes

Draft or authorised invoices raised from won deals or store orders, using the correct branding theme, account codes and tracking categories.

Payments back to CRM

Webhooks on invoice and payment events update the deal and account with status and outstanding balance.

Store order posting

Shopify or WooCommerce orders summarised daily or posted individually, with gateway fees and refunds handled as separate lines.

Tracking categories

Branches, sales teams or product lines mapped to Xero tracking categories so profit and loss can be split without spreadsheets.

03 — Configuration vs custom

What is set up, and what is written.

Configuration

  • Xero app connection and scopes
  • Account code and tax rate mapping
  • Tracking category design with your accountant
  • Native connectors where they fit

Custom development

  • Queued middleware within the 60-per-minute limit
  • Daily summarised posting for high-volume stores
  • Refund and fee handling
  • Reconciliation report between CRM, store and Xero

04 — Typical effort

What it usually takes.

Ranges from comparable projects. You get a fixed-scope quote after a 30-minute call.

CRM contacts and invoices2–3 weeks
Store orders with fees and refunds3–5 weeks
Multi-organisation groupsadd 1–2 weeks

05 — What you own

Yours at handover.

  • Integration code and hosting
  • Mapping document signed off by your accountant
  • Monitoring alerts to your email
  • Replay tool for failed records

FAQ

Questions about Xero integration.

What are the Xero API rate limits?

60 calls per minute and 5,000 calls per day per connected organisation, plus a concurrency limit. We queue and batch requests to stay within them.

Should store orders be posted one by one or summarised?

Low volumes can post individually. High-volume stores usually post a daily summary per payment gateway, which keeps Xero clean and reconciles to bank deposits.

Can Xero tracking categories come from the CRM?

Yes. We map a CRM field such as branch or sales team to a tracking category option on every invoice line.

Does this work with Xero in the UAE?

Yes. Xero supports VAT returns for the UAE. We configure tax rates on the CRM side to match.

Related

Often paired with

Next step

Start with a 30-minute call.

Tell us what you run today and where it breaks. You get a fixed-scope quote afterwards. We don’t publish rates, because the honest price depends on scope.

Enquire

Talk to us about Xero integration with CRM & e-commerce.

We have started the message for you. Add what you run today and we will reply within one business day.

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