Howdy Constantino,
Welcome to our support forums and thanks for reaching out to us! I’ll help you here…
Just add the snippet below to your theme’s (or child theme’s) functions.php file:
/* Set a default category for facebook imported events */
function tribe_set_facebook_category ( $event_id, $organizer_id, $venue_id ) {
wp_set_object_terms( $event_id, 'cat-slug', Tribe__Events__Main::TAXONOMY, false );
}
add_action ( 'tribe_events_facebook_event_created', 'tribe_set_facebook_category', 10, 3 );
Be sure to change cat-slug for the real event category slug in your site!
Please let me know if this works for you,
Best,
Nico