System integration, so you enter it all just once.
I connect your online shop, accounting, CRM (your customer records) and email. You enter an order, a customer or a price in one place, and the other systems pick it up. That works even when a system has no built-in option for it.
1,250 euro excl. VAT✦Money back if the report finds no opportunity that pays for itself within a year
Integrations in short
Diginesso is the sole proprietorship of Wesley Beerendonk, a Dutchman who lives in Riparbella near Pisa. I connect the systems of small and mid-sized businesses in the Netherlands, Germany and Italy, such as an online shop, an accounting package like Xero, a CRM and email. Where a system has no ready-made integration, I build a custom API integration. A larger project starts with an AI Process Audit at 1,250 euro excl. VAT. In the audit I work out which integration saves you the most time and what it is worth per year. In the standard setup the systems I build run on EU servers, with the database and the application in Frankfurt.
- Sole proprietorship near Pisa, Italy
- Works in English, Dutch, German and Italian
- Fixed price per phase
Systems I connect to
- Xero
- QuickBooks
- Sage
- Shopify
- WooCommerce
- Amazon
- HubSpot
- Outlook
These are systems I build integrations with. None of them are Diginesso clients or partners.
What an integration does
Your shop and your books in sync.
An integration, sometimes called a connector, is software that moves data from one system to another as soon as something changes. Nobody retypes anything or keeps a spreadsheet on the side. Your accounting software and your shop always show the same figures.
Online shoptoAccounting
- order
- VAT code
- customer details
An order from your shop lands in your accounts as a sales invoice, for example in Xero or QuickBooks.
Process automation between your systemsStocktoShop and Amazon
- quantity
- price
You change a price or a stock level once. Your shop and marketplaces such as Amazon pick it up, even across hundreds of products.
Online shoptoCRM
- new customer
- address
A new customer appears in your CRM with their first order, for example in HubSpot. For a returning customer the integration only updates their details.
AccountingtoCRM
- payment status
Once an invoice is paid, your CRM shows it too, so you can see at a glance which orders have been paid.
EmailtoAccounting
- supplier invoice
An AI agent reads the supplier invoices that arrive by email. It prepares them as entries in your accounts and passes anything it is unsure about to you.
Process supplier invoices automatically
Where a system has no standard integration, I write one that talks to it directly. For work that fits no system at all, there is custom software. Have custom software built
How it runs
What does a shop-to-accounting integration look like?
An invented example, from start to finish.
A wholesaler with an online shop, an accounting package and a stock system
Invented example, not a clientHow it works today
Every morning someone retypes the shop orders into the accounts and then adjusts the stock by hand. By Friday the stock figures are off anyway, because some orders came in by phone in between.
What gets connected
The shop is connected through its API to the accounts and to the stock system. An order creates its own sales invoice and books the stock out. A customer who is not in the CRM yet goes straight in.
What changes
Nobody spends the morning retyping any more. An order with something missing, such as a VAT code, goes onto a list that someone checks. That way it cannot quietly throw your stock figures off.
As a general guide: 2 hours of retyping can sometimes come down to about 10 minutes, and a project like this usually pays for itself in 3 to 6 months. These are not figures from Diginesso clients. I work out what it would mean for your business in the AI Process Audit.
How I work
Going live in four phases.
After each phase, you decide whether we carry on.
- 1 to 2 weeks
AI Process Audit
I look at which systems you use, where the retyping happens and which integration saves the most time. You get a report with the opportunities, ranked by what they are worth.
- 2 to 4 weeks
First version on your data
I build the first integration and test it with your own orders before it writes anything into your live accounts. We agree up front what score it has to reach, for example how many of a hundred test orders come through without errors. If it falls short, we stop and you pay only for this phase.
- 2 to 6 weeks
Live and monitored
The integration is switched on and monitored. Orders with an error go onto a list for checking. A log records everyone who accesses the system.
- ongoing
Growing with you
I keep it running for a fixed monthly amount. Every system you add gets a price up front.
What it costs
What does an API integration cost?
There is no single price for an API integration. The cost depends mostly on how many systems are involved and whether they already have a standard integration. The number of exceptions in your orders counts too. For one small integration, send me a message and you will hear the quickest way to start. A larger project starts with the AI Process Audit at 1,250 euro excl. VAT. It gives an estimate per opportunity, and after that we agree a fixed price for each phase in advance.
First contact
Free
Tell me in a few sentences which systems you use and where the retyping happens. You get a personal reply from me within one working day.
AI Process Audit
1,250 euroexcl. VAT, usually 1 to 2 weeks
I map which data comes from where and calculate what each opportunity is worth. If the build assignment is agreed within 3 months of the report date, the full amount comes off the first invoice of the build.
If the report names no opportunity whose calculated benefit over twelve months exceeds 1,250 euro, you get your money back. An email is enough, up until you approve the report. The report counts as approved if I hear nothing from you 14 days after sending it.
Build
Fixed priceper phase
You get a fixed price for each phase in advance. What I build specially for you becomes yours once the invoices are paid, including the configuration of the integrations.
Maintenance
Fixed amountper month, one month’s notice
I keep an eye on the integrations and repair whatever breaks, with no separate invoice. You pay for hosting, the database and AI model usage yourself, on your own accounts. Extensions get their own price up front.
Everything we agree is set out in the terms of business. Updated 28 September 2026.
How secure is an integration?
Minimum access for each integration
Each integration gets only the access its job needs. An integration for your orders cannot reach your HR files.
Keys in a vault
The passwords and keys to your systems sit in a locked-down vault and appear nowhere in the code.
In the standard setup the database (Supabase) and the application (Vercel) run in Frankfurt, and emails the system sends go out through Resend from Ireland. All three are American companies with servers in Europe. There is also a setup with European providers only.
All providers and regions in one list
Questions
Frequently asked questions about system integration
What is a custom API integration?
A custom API integration is a piece of software I build when two systems do not talk to each other on their own. An API is the socket through which software exchanges data with other software. Where the plug does not fit straight away, I build the adapter that translates the data. All you notice is that your data is correct everywhere.
Can you connect my online shop to Xero or QuickBooks?
Yes. Xero and QuickBooks both have a public API, as do Sage, Shopify and WooCommerce, so I can connect them. A shop order can then create the sales invoice in your accounts and book the stock out by itself. In the AI Process Audit I find out which data can move between your systems. For a system that is not on this list, I also check whether it has an API.
What does it cost to have systems integrated?
The build gets a fixed price per phase, which you know before the phase starts. The amount depends mostly on the number of systems and on the exceptions in your process. For one small integration you can send me a message, and I will tell you the quickest way to start. A larger project starts with the AI Process Audit at 1,250 euro excl. VAT, with an estimate of the build cost per opportunity. If the build assignment is agreed within 3 months of the report date, the full amount comes off the first invoice of the build.
How long does it take before an integration is running?
Allow 5 to 12 weeks, from the start of the AI Process Audit to an integration that is live and monitored. The audit takes 1 to 2 weeks, the first version on your data 2 to 4 weeks and the live and monitored phase 2 to 6 weeks. After each phase, you decide whether we carry on.
Will anything break in my current systems?
Your current systems keep running as they do now while I build and test the integration with your own data. Only once it is correct do I switch it on. We agree up front what score the first version has to reach, for example how many of a hundred test orders come through without errors. If it falls short, we stop and you pay only for that phase.
What happens if an order goes wrong along the way?
That order goes onto a list that someone checks, so an error does not slip unnoticed into your stock or your accounts. If something is missing from the order itself, such as a VAT code, you fill it in and the order goes through after all. I fix errors in the integration itself as part of maintenance.
What if one of my systems changes?
If an integration breaks because of an update to one of your systems, I repair it under maintenance, with no separate invoice. Work needed because you change something yourself in a connected system gets its own price up front, as does connecting a new system. A few things count as force majeure: an outage at one of the systems, a provider discontinuing a service or a version, or new terms that no longer permit the integration. Agreed deadlines then move, and neither of us owes the other damages. That is how the terms of business put it.
Who owns the integration once it is finished?
You do, once the invoices are paid. That covers the source code, the workflows, the configuration of the integrations with your own systems and the documentation. My own standard components stay mine, but you get a perpetual, transferable licence to use them. So you can carry on without me.
Which systems do you want to connect?
Request the AI Process Audit, or first write to me about which systems you use and where the retyping happens. You get a personal reply from me within one working day.
I build your integration myself and stay your point of contact afterwards. More about Wesley and Diginesso