Translate error and validation messages in Magento

Question

I have a store with in 3 languages: French, English (default) and German

How to translate the error messages and validation like:

There is already an account with this email address. If you are sure that it is your email address, click here to get your password and access your account.

Are there any ready translations?

Answer 1

The easiest way is to use inline translations. To enable it, go to configuration > developer > inline translation. Don't forget to restrict translating tasks to your ip on the same developer tab. Then you can simply translate almost anything by simply clicking on it.

Answer 2

Search the message in:-

/app/locale/en_US/Mage_Customer.csv

Here, en_US is the locale code for US English. It is fr_FR for French and so on for other languages.

You can change it there.