Don't worry, in vacation mode you will still receive the Sponsor revenue and pay the salaries. Prearranged matches will be played normally (Championship, Tournaments etc.) except that aggressivness and meteo bonus are disabled for both teams. Your strategy will be changed randomly for every match. Equipments do not expire during vacation mode (except boosts). At your return, you will get a fame bonus equal to 3000 x the number of days spent on holiday.
Football Champions Classic (International)
What is happening if I'm taking holidays ?
Where can I activate the vacation mode ?
Go to "Inbox" then select "Edit your profile"