From November 8 to December 14, 2023, convincing friends who have stepped away from Final Fantasy XIV to return earns both of you in-game rewards.
To participate in the Callback Campaign, select a friend from your Final Fantasy XIV friends list who’s been offline for at least 90 days. Choose the “Invite Friend to Return” option and they’ll receive an email letting them know that you’re beckoning for their triumphant homecoming. The returning friend receives 14 days of free play along with a truckload of aetheryte tickets and 10 silver Chocobo feathers that can be redeemed for special in-game equipment.
As the person who sent the invitation, if your friend purchases a new subscription within 90 days of accepting your invite, you’ll receive five gold Chocobo feathers that can also be exchanged in-game for some rare mounts and other special items.
You can find a full breakdown of the Callback Campaign's participation requirements and rewards on the event’s official Lodestone page.