Depending on the country, it is not an absolute right, but still recognized as an essential one.

See Article 16 - Freedom to conduct a business - http://fra.europa.eu/en/eu-charter/article/16-freedom-conduc... and the article The 16th of all EU-r rights: the right to conduct a business and how the Charter contributes - https://www.eurac.edu/en/blogs/eureka/the-16th-of-all-eu-r-r... - for the European perspective of it.