If Rangers fans don't have a match ticket, they should not travel to Sevilla for the final.
Large numbers of ticketless fans in the city pose a security risk.
The Ramon Sanchez Pizjuan Stadium has a capacity of 43,000, but tens of thousands of Rangers and Eintracht Frankfurt supporters missed out on tickets.
There is high demand for flights to the Andalusian capital but there are no plans for a fan zone.
Rangers fans are being urged not to go without a match ticket or buy one on resale sites.
Fans who have been unsuccessful in their application for tickets are strongly advised not to travel without tickets or purchase tickets on the secondary market.
In order to maintain the safety and security of fans, ticket holders should be aware that checks will be carried out at the finals and the local authorities in the cities will take action against the unauthorized resale of tickets.
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Any tickets which are offered for sale by third parties on the internet (including on social media, marketplaces and secondary ticketing platforms) are advertised in violation of the ticket terms and conditions.
UEFA actively enforces its ticketing terms and conditions, including by monitoring the internet, and will take action where advertisements are identified.
Fans should be aware that third parties who offer for sale tickets on the internet are often not in possession of the tickets which they claim to have for sale, despite the high prices.
The demand for tickets to the finals may result in counterfeit tickets entering the secondary market, as has happened before. Fans are advised that counterfeit tickets won't get them into the stadiums.
Rangers fans have been allocated 10,000 tickets for the final.