Connect Exact Online to AI: what waiting costs you

Manual work in Exact Online costs you money that an AI agent can largely win back, and you can work that out yourself. At 100 purchase invoices a month you quickly lose 10 hours a month to retyping. This article shows how to calculate it, what an AI link with Exact Online does and what to watch for under the GDPR (AVG).
What does manual work in Exact Online cost?
Every invoice that comes in and is entered by hand costs roughly 5 to 8 minutes:
- open the email and download the attachment;
- look up the supplier in Exact Online;
- enter amounts, VAT code and general ledger account;
- save and link to a purchase order (if there is one).
At 100 invoices a month that is about 10 hours of employee time. At €30 per hour all-in labour cost, that is €300 a month and €3,600 a year. The table below shows the same sum for other volumes.
| Invoice volume per month | Manual hours per month | Cost (€30 per hour) | Cost per year |
|---|---|---|---|
| 50 invoices | 5 hours | €150 | €1,800 |
| 100 invoices | 10 hours | €300 | €3,600 |
| 250 invoices | 25 hours | €750 | €9,000 |
| 500 invoices | 50 hours | €1,500 | €18,000 |
This is an illustrative calculation with assumptions (6 minutes per invoice, €30 per hour), not a measurement at a specific company. It also covers invoice processing only: sales requests, stock movements and customer communication come on top. Work it out and you sometimes find half an FTE of repetitive admin work in there.
What does AI automation do with Exact Online?
Exact Online has its own document processing feature that recognises purchase invoices and suggests how to book them. That is the base layer.
On top of that you can use AI agents, for example through a link with the Exact Online API or MCP (Model Context Protocol), to set up a working environment where an agent runs tasks on its own:
- Purchase invoices: recognise, validate and prepare for booking.
- Sales orders: create them from email or webshop orders.
- Stock: update on receipt or shipment.
- Debtor management: draft reminders based on payment terms.
- Reports: generate weekly results and send them to management.
The gain is in removing repetitive work, not in replacing people. You can find more on the links and use cases on the integrations page, and on AI agents for your administration at invoices and administration.
How does UnifyAI approach this?
Many automation solutions focus on one process: invoices, or orders, or reports. UnifyAI looks at several processes together. A project runs roughly like this:
- Intake: we map which processes in Exact Online cost the most manual hours.
- Link: we build an AI agent that works through the Exact Online API with your setup (general ledger accounts, cost centres, project codes).
- Validation: the agent works with approval flows. You decide which actions run automatically and which need a check.
- Monitoring: you see what the agent has done and where the exceptions are.
Not sure which process to tackle first? AI consultancy can help you prioritise.
When does it pay for itself?
Base your decision on three variables:
| Question | Rule of thumb |
|---|---|
| How many invoices per month? | Under 50: limited ROI. Between 50 and 200: clear ROI. Over 200: fast payback |
| How many processes are repetitive? | The more processes you automate, the faster the investment pays for itself |
| What is the hourly labour cost for admin work? | For many SME employees roughly €25 to €35 |
A simple test: add up the hours your team spends on manual Exact Online tasks per month, multiply by the labour cost and set that against the cost of automation. If the number is clearly above that cost, there is probably a business case. After the payback period it delivers time, fewer errors and happier employees: nobody enjoys retyping invoices.
GDPR (AVG) and security: what to watch for
Bookkeeping data is sensitive: supplier names, bank account numbers, invoice amounts. As soon as it concerns a sole trader, a freelancer or a contact person, this is personal data and falls under the GDPR (AVG). Watch for these points:
- Data storage: is invoice data processed by an external AI service (for example OpenAI)? Then that party has access to your administration data. Get a data processing agreement.
- Processing location: ask where the models process data and, where possible, choose processing inside the EU.
- Log: you must be able to show which systems have had access to personal data. A good integration platform logs every action.
- Access rights: an AI agent only gets access to the functions in Exact Online that it needs, nothing more.
- Training: ask every supplier explicitly whether your Exact Online data is used to train AI models. The answer must be no.
You can read more on this at security and governance.
Frequently asked questions
Does this also work with a specific setup, like project administration or multiple administrations?
In principle yes. The link works through the Exact Online REST API, which gives access to the modules you work with, including multiple administrations. The agent is set up for your situation. Check per use what the API supports.
Do I need a more expensive Exact Online subscription for AI links?
Not necessarily. For a link with an AI agent you need API access. Which subscriptions and terms come with that is up to Exact and can change, so ask your Exact partner.
What if the AI makes a mistake when booking?
That is why you work with validation rules and exception workflows. If an invoice falls outside the normal parameters, for example an unknown supplier, a deviating amount or a duplicate invoice number, it goes to an employee for approval. The AI only handles what it can place with certainty.
What does it cost?
That depends on the number of processes and the complexity of your setup. In an introduction we go through your situation and what fits.
What is a logical next step?
First calculate what you are losing now: hours per month times labour cost. Want to know which Exact Online processes deliver the most? Make an AI scan or plan an introduction.
Sources
Frequently asked questions
Short, clear answers so you can decide faster.
Does an AI link also work with a specific Exact Online setup, like project administration or multiple administrations?
In principle yes. The link works through the Exact Online REST API, which gives access to the modules you work with, including multiple administrations. The agent is set up for your situation; check per use what the API supports.
Do I need a more expensive Exact Online subscription for AI links?
Not necessarily. For a link with an AI agent you need API access. Which subscriptions and terms come with that is up to Exact and can change, so ask your Exact partner.
What if the AI makes a mistake when booking in Exact Online?
You work with validation rules and exception workflows. If an invoice falls outside the normal parameters, like an unknown supplier or a duplicate invoice number, an employee reviews it. The AI only handles what it can place with certainty.
What should I watch for with the GDPR (AVG) and AI on bookkeeping data?
Get a data processing agreement with every party that processes data, ask where the data is processed, have actions logged, limit the agent's access rights and check that your data is not used to train models.


