If you're a citizen of a non-Schengen country travelling to Copenhagen, Denmark you might need a visa. Check this page for more information.
Citizens from the following countries might need to obtain a Schengen Visa to enter Denmark: Albania, Armenia, Azerbaijan, Belarus, Bosnia & Herzegovina, Georgia, FYR Macedonia, Moldova, Montenegro, Russia, Serbia, Turkey and Ukraine. In case your country is not in this list but is not a member of the Schengen Treaty, please get in touch with your local Danish Embassy.
More information about the invitation letter will be sent to you upon approval of your accreditation.