Any Contracting State may prescribe that a European patent application shall not confer such protection as is conferred by Article 64. However, the protection attached to the publication of the European patent application may not be less than that which the laws of the State concerned attach to the compulsory publication of unexamined national patent applications. In any event, each State shall ensure at least that, from the date of publication of a European patent application, the applicant can claim compensation reasonable in the circumstances from any person who has used the invention in that State in circumstances where that person would be liable under national law for infringement of a national patent. Source
If the language is not the official in one of the countries you need to translate it and make it public according to the national law or send it to the person using the invention
Example: Portugal law
Is there a provisional protection under Art. 67 EPC for a European patent application?
Yes, Portuguese law provides provisional protection after publication of the European application under Art. 67(1) EPC, said protection being equivalent to published national patent applications, provided that a translation of the claims, accompanied by a copy of the drawings, is filed. A notice is then published in the patent bulletin and, simultaneously, the translation together with the drawings, if any, are made available to the public. Provisional protection may be called upon even before publication, against a third party who has been notified of the submission of the application and received the details of the case.
What are the rights conferred by the provisional protection?
The provisional protection provides the same protection as that of a granted patent, to be considered in the calculation of any compensation (Art. 5(1) CPI). Nevertheless, verdicts in suits brought up on the basis of provisional protection cannot be delivered before the final grant or refusal of the application, as the judicial case is suspended at the end of the submission of the arguments by the parties. source