#Ukrainian language

If I want to get a job in the civil service, do I need to take a Ukrainian language proficiency exam and what will happen if I don't pass it?

I am an individual entrepreneur and I carry out settlement operations. Will I have problems with the tax office if I issue fiscal checks only in Ukrainian?

Can commanders hold me accountable for failing to follow an order in Ukrainian if I come from a Russian-speaking region?

Will it be considered a violation of Ukrainian law if I, as an entrepreneur, issue a fiscal check in a foreign language if the main details are duplicated in Ukrainian?