--- title: "Contact" id: "997916" type: "page" slug: "contact" published_at: "2026-06-17T13:09:47+00:00" modified_at: "2026-09-03T05:58:28+00:00" url: "https://ioi.gmbh/en/contact/" markdown_url: "https://ioi.gmbh/en/contact.md" --- # Let's talk about your Migration. Whether it is a free Upgrade-Check, a license request for DataMigrate Pro or sparring on an ongoing Business Central project – we usually reply within one working day. Choose the channel that suits your enquiry best. [Phone +49 214 8402 3000](tel:+4921484023000) [E-Mail kontakt@ioi.gmbh](mailto:kontakt@ioi.gmbh) [Book an appointment 30 min · Upgrade-Check](https://calendly.com/d/cxcn-rw3-kzf) Request form## Briefly describe your project. The more you tell us about your NAV or Business Central environment, the more precisely we can answer. Mandatory fields are marked (*). ✓ ## Thank you – we have received your request. We get back to you by email within one working day. For urgent matters you can reach us by phone at +49 214 8402 3000. Headquarters ### IO Integrated GmbH & Co. KG Königsberger Platz 30 51371 Leverkusen Germany Phone: [+49 214 8402 3000](tel:+4921484023000) E-mail: [kontakt@ioi.gmbh](mailto:kontakt@ioi.gmbh) Web: [www.ioi.gmbh](https://www.ioi.gmbh) **IO Integrated USA Inc.** 8 The Green #24448 Dover, DE 19901 United States Availability (CET/CEST) - Monday09:00 – 17:00 - Tuesday09:00 – 17:00 - Wednesday09:00 – 17:00 - Thursday09:00 – 17:00 - Friday09:00 – 14:00 - Sat. & Sun.closed Outside business hours, the fastest way to reach us is by email or via the online calendar. Further channels## The direct line – depending on your concern. Four addresses for four concerns – that way your message goes straight to the colleagues who will answer it. [SLA · 8 h Support & Hypercare Ongoing migration projects, technical questions about DataMigrate Pro or Business Central. support@ioi.gmbh](mailto:support@ioi.gmbh) [License License & renewal Quote, order and renewal for DataMigrate Pro and CloneMyCompany. lizenz@ioi.gmbh](mailto:lizenz@ioi.gmbh) [Partner Become a partner Microsoft partners and consultancies that want to use DataMigrate Pro for their own projects. partner@ioi.gmbh](mailto:partner@ioi.gmbh) [Careers Careers & applications Speculative applications and open positions for AL development, consulting and migration. jobs@ioi.gmbh](mailto:jobs@ioi.gmbh) Frequently asked## Before you write. Four questions that reach us frequently by phone and email. How quickly do you respond? + Requests that reach us on weekdays before 2 p.m. are usually answered on the same day. You will receive an initial response within one working day at the latest – even if the final assessment still requires some research. Is the Upgrade-Check really free? + Yes. The Upgrade-Check includes an introductory conversation, a review of your source environment and an initial assessment of effort and procedure. Only afterwards – if both sides want to continue – is a concrete quote prepared. Which documents should I prepare? + A rough list of your own customizations and Add-ons, the current NAV or BC version and a note on the database size are helpful. If you can provide the code base, that is ideal – but it is not mandatory. Do you also work outside the DACH region? + We are based in Leverkusen, but we run projects across Europe – mostly remotely. On-site appointments are possible, but not necessary in most migration projects. English is the project language where required.