Integration · Xero

HARNESS + XERO.
THE LEDGER, WITH JUDGEMENT.

Xero already knows who owes you what. Harness reads that picture every night, cross-checks it against your email history, and drafts the follow-up you would have written if you had the time.

This page spells out the boundary exactly: what Harness can see, what it can prepare, and what it can never do.

What Harness reads from Xero

  • Your invoices: who, how much, when due, and whether anything has been paid against them.
  • Customer and supplier contact records, so drafts go to the right person.
  • Payment history per account, so Harness knows this customer always pays on the 15th.
  • Credit notes and part-payments, so it never chases money that is already settled.

What Harness does with it

  • A fresh chase draft per overdue invoice, written from the ledger position and your email history with that customer.
  • A morning summary: what is overdue, what changed overnight, what needs your eyes.
  • Notes against the account in your company brain, so the next draft knows what happened last time.

Always your call

  • Every message to a customer. Harness drafts, you read, you tap send. Nothing leaves without that tap.
  • Any change in tone. You decide when a chase gets firmer.
  • Anything involving a dispute, a credit note, or a payment plan.

Blocked, full stop

  • Harness cannot send anything to a customer on its own.
  • It cannot edit, void or approve invoices in Xero.
  • It cannot move money, touch bank feeds, or change your chart of accounts.
  • It cannot see your Xero password. The connection uses Xero's own permission system, and you can revoke it from Xero at any time.

Questions people ask

Does Harness replace Xero's built-in invoice reminders?

No. Xero's reminders are fixed templates on a fixed schedule, and they send automatically. Harness writes a fresh message per invoice, based on the account history, and drafts wait for you to approve, edit or skip. Many businesses switch the Xero reminders off once Harness is running. See the full comparison at /compare/xero-reminders.

Can Harness see my bank transactions in Xero?

The connection is scoped to invoices, contacts and payments. It does not need your bank feed to do its job, and you control the exact permissions when you connect.

What happens if I disconnect Xero?

Harness stops reading new ledger data. The drafts it already prepared stay in your approval queue, and your company brain keeps the notes it has made. Nothing is sent and nothing is deleted without you.

Does it work with Xero's UK edition?

Yes. Harness is built for UK small businesses, including UK invoice numbering, VAT amounts and statutory late-payment interest under the Late Payment of Commercial Debts (Interest) Act 1998.

Keep Xero. Add the judgement.

Seven days free, then £19 a month for your whole company if you are one of the first 50 companies, the Founding Fifty. Connect Xero, watch the first morning's drafts, and decide with evidence.

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