Service & Support
You cannot launch a product and not having the Service & Support set up properly. Depending on the market, the product and the legal issues, the service & support will differ per case.
In general you should deliver local support on 1st level. That means that end-users need to have the possibility to contact you in their local language.
This level is more advanced. End-users will need more professional support. It is very costly to have a 2nd level support in each country you operate. Depending on the product of course you can probably fullfill this support with the 5 main languages (English, German, French, Italian and Spanish).
This is the most advanced level. If people need support on this leve they can contact the technical department of your Head office. No local presence or language is required.