Using AI with the systems you already run

Last checked 4 October 2026

How Microsoft 365 Copilot and the AI in your CRM and accounts software fit a construction business, how to tell if your Microsoft 365 is ready, and what to check before you connect anything.

An illustrative checklist headed Before you switch on Copilot, with five checks marked to do, fix first, done and agreed

Most construction firms already pay for software that has AI built in or on offer: Microsoft 365, a CRM, accounts software and often a system for jobs or projects. Before you buy anything new, it's worth knowing what those can do and what has to be in order first, because the AI works from whatever your systems already hold.

Using Microsoft 365 Copilot in a construction firm

Microsoft 365 Copilot, which Microsoft now calls Microsoft Copilot, works inside Word, Outlook, Teams and Excel. In a construction firm that means summarising long email threads on a job, drafting letters and reports, writing up Teams meetings with their actions, and finding past documents, all from the files and emails each person can already open.

  • Summarising a long email chain with a client or subcontractor
  • Drafting letters, reports and minutes in Word
  • Writing up a Teams progress meeting, with the actions
  • Finding a document you know exists but can't place

There are two versions, and they see very different amounts of your business:

From Microsoft's own documentation, checked 4 October 2026. Some screens still use the old names, Microsoft 365 Copilot and Microsoft 365 Copilot Chat.
Copilot ChatMicrosoft Copilot (paid add-on)
Comes withEligible Microsoft 365 business licencesA Copilot licence on top of an eligible plan
Works fromMostly the web, plus any file you give itYour emails, files, meetings, calendar and chats as well
Good forDrafting and summarising what you paste in or uploadFinding and using what's already in your Microsoft 365

Is your Microsoft 365 ready for Copilot?

It's ready when your documents live in Microsoft 365 and each person can open only what they should. Copilot shows people anything they already have permission to see, so a salary file shared with everyone becomes easy for everyone to find. Check where files live, tidy who can open what, then check your licences.

Who can open what

Illustrative

An illustrative check of which folders each person can open, before switching on Copilot
FolderWho can open itBefore Copilot
Tenders and bidsBid teamBid teamFine
Payroll and salariesEveryone in the companyEveryone in the companyFix first
Subcontractor accountsFinanceFinanceFine
HR and disciplinaryDirectors, and a former employee's accountDirectors, and a former employee's accountFix first
Site photos, 2019 jobsAnyone with an old linkAnyone with an old linkArchive
Project drawingsEach project teamEach project teamFine
Copilot shows each person only what they can already open, so the fix is in who has access.

Five steps get you there, and Microsoft provides the tools for two of them:

  1. Find out where your documents live.

    Copilot works from Microsoft 365: SharePoint, OneDrive, Teams and Outlook. Files on an old server, in Dropbox or in another system need moving, or a connector set up by whoever runs your IT.

  2. Check who can open what.

    Look for folders shared with everyone or through old links, especially payroll, HR and anything commercial.

  3. Archive what's finished.

    Old sites and folders clutter the answers. Microsoft suggests archiving inactive sites so Copilot works from current content.

  4. Use Microsoft's own checks.

    The Copilot readiness report in the Microsoft 365 admin centre shows who is eligible for a licence. SharePoint Advanced Management, included with Copilot licences, finds overshared content.

  5. Start with a few people.

    Pick one team and one job, and compare the hours it takes before and after over four weeks.

AI and your CRM

Most CRMs now include AI that summarises a customer or opportunity record, drafts emails and helps you prepare for meetings. It works from what's logged in the CRM, so it helps most when enquiries, calls and emails go in. Whether your CRM is general or built for construction, check what its AI can see and change.

Two examples, described from each vendor's own documentation and checked 4 October 2026. Not recommendations.
CRMWhat its AI does, as the vendor describes itWho sees what
Microsoft Dynamics 365 SalesSummarises leads, opportunities and accounts, highlights recent changes, helps you prepare for meetings and drafts emailsOnly records and files the signed-in person can already open
HubSpotBreeze Assistant summarises records, writes content such as emails and helps you prepare for meetingsAdmins choose which data AI can use; each person's permissions decide what it can do

In a construction business the useful part is usually keeping the CRM up to date: turning enquiry emails and call notes into updates for someone to approve. It's one of the ten office jobs in how AI is used in construction.

AI and your accounts software

Accounts software is adding AI that captures bills and receipts, reconciles bank transactions, chases late invoices and answers questions about your figures in plain language. For a contractor, that means less keying in and a quicker view of who owes what. Check what it can change on its own, and keep approving every payment yourself.

Two examples, described from each vendor's own pages and checked 4 October 2026. Not recommendations.
SoftwareWhat its AI does, as the vendor describes itControl
Xero, with JAXCaptures bills and receipts, sends invoices, reconciles transactions, and answers plain-language questions about cash flow, invoices and bills from your Xero dataEvery automated action goes in an audit trail you can review. Xero's connector for Claude is read-only
Sage, with Sage CopilotIn Sage Accounting, follows up late invoices in your tone and at your timingWorks within the permissions you set, with audit trails and approvals. Sage says features vary by product and region

Cash flow is where this pays off for most contractors. The construction cash flow guide has a free 13-week look-ahead you can fill in from your accounts.

What to check before connecting anything

Before you connect AI to any system, know what it can see, what it can change, where your data goes and who checks its work. Start read-only where you can, keep personal data out until you've assessed it, and trial it with a few people on one job before anyone else gets it.

What it can see
Does it follow each person's permissions, or can it see everything?
What it can change
Can it send, post or pay on its own, or only suggest? Is there a read-only option?
Where your data goes
Is it stored, and is it used to train the vendor's models? Microsoft says Copilot doesn't train its models on your Microsoft 365 data. Ask other vendors to put their answer in writing.
Personal data
The ICO's guidance says most uses of AI with personal data need a data protection impact assessment. Do it before you switch on.
Who checks
Who approves what AI drafts, and where is that recorded?
Your rules
Does your team know what can and can't go into AI?AI policy template →

The ICO is reviewing its AI guidance after the Data (Use and Access) Act, so check the current version before you rely on it.

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