Even though embarking on their first-ever continental adventure, Oliver Glasner's side are learning very quickly. Missing key figures like striker Jean-Philippe Mateta and defender Daniel Muñoz, the Eagles left Dublin with a commanding result that all but secures them a place in the Conference League playoffs.
Another victory in their next match against Finnish KuPS ought to be enough to seal direct entry to the knockout stages, particularly following a previous setback against Strasbourg.
This occasion provided a platform for some of Palace's lesser-used players to shine. Christantus Uche, in only his second beginning since joining on loan from Getafe, opened the scoring with a well-taken goal. Forward Eddie Nketiah added a second, finding the net for the second consecutive succession.
A Shelbourne side that had concluded their league season were no match against a mostly rotated Palace lineup. The Londoners were already weakened by the news that Mateta and Muñoz are out with leg injuries.
Despite torrential rain in Dublin, Palace quickly established dominance. A slick passing sequence in the 11th minute, initiated by Daichi Kamada's incisive pass, let Nketiah to lay on Uche for a simple tap-in.
Youngster Adam Wharton came close minutes later, fizzing a long-range effort over the bar. Nketiah then appealed for a penalty after bursting into the area, but the official dismissed the appeals.
The formerArsenal man did not have wait long to find his goal, prodding home from a yard out after Uche's shot had hit the post.
The home side were hanging on for dear life. Full-back Kameron Ledwidge was fortunate to avoid a booking for two agricultural challenges on Yeremy Pino, before Chris Richards struck the crossbar with a powerful header from a corner.
The contest was effectively over eight minutes before half-time. Yeremy Pino meandered past a series of comically weak challenges before calmly dispatching a shot past goalkeeper Wessel Speel to extend the lead to 3-0.
After the break, manager Oliver Glasner took the chance to rest key individuals like Kamada and Wharton. Replacement Romain Esse almost scoring with his very first touch, only to see his shot blocked.
The youngster was incredibly unlucky later on, seeing one shot crash off both posts before being clasped on the line. Uche also blazed a glaring chance, indicating there is still room for development in his game.
A solitary worry for Palace was a late knock to Justin Devenny, who limped off. This paved the way for 17-year-old forward Benji Casey to earn his senior debut, rounding off an otherwise perfect evening for the visiting side.
A seasoned tech journalist and digital strategist with over a decade of experience covering UK innovation and startup ecosystems.