Last updated: September 19, 2026
CustomerGate 365: support
Questions about CustomerGate 365, problems and suggestions go to Van Oosten Software by e-mail. This page says what to send along, so your question can be answered without a round of follow-up questions first.
Where to send it
Send an e-mail to info@van-oosten.nl. Van Oosten Software has no access to your Business Central environment, so the answer is based on what you write.
Check this first
Most problems with a setup show up on the app's own status lines:
- Open CustomerGate Setup and look at the lines under Privacy, E-mail, Customer Portal and Permissions. A line that is not in order usually names the cause.
- Walk through the troubleshooting page of the manual; it lists the common symptoms and where to look.
- If the problem is in the forms or the portal on the website, the website's developer is the first port of call: the website is not part of the app.
What to send along
- The version of Business Central and whether the environment is production or sandbox.
- The version of CustomerGate 365, which Extension Management shows.
- The name of the environment and the company.
- The status lines on CustomerGate Setup, copied or as a screenshot.
- What you did, what you expected and what happened, with the exact error message.
- Where it applies, the number of the request, account request or quote. That number is enough: please do not send personal data of your own customers.
What happens next
You get an answer by e-mail, usually within one working day. That is how questions are handled in practice, not a guaranteed response time. If something turns out to be a fault in the app, it is fixed in a next version, and the release notes say so.
Suggestions
Suggestions for the app are welcome at the same address. They are weighed against what the app is for: one app for every customer, in which what differs per customer is a setting and not code.
Where to go next
- Manual
Help per screen, from web requests to the setup page.
- Setup guide
From installing the app to a first request through the customer portal.
- Release notes
What is in each version of the app.