pilgrimage_completed_log_entry_effect

pilgrimage_completed_log_entry_effect = {
	if = {
		limit = { has_hajj_pilgrimage_type_trigger = yes }
		involved_activity = {
			add_activity_log_entry = {
				key = hajj_completed_log
				tags = { completed }
				score = 100
				show_in_conclusion = yes
				character = root
				#Effects
				root = {
					#This effect applies traits/xp as appropriate and ALSO calls give_pilgrimage_reward_effect
					give_hajj_trait_or_xp_effect = yes
				}
			}
		}
	}
	else_if = {
		limit = { exists = involved_activity }
		involved_activity = {
			add_activity_log_entry = {
				key = pilgrimage_completed_log
				tags = { completed }
				score = 100
				show_in_conclusion = yes
				character = root
				#Effects
				root = {
					#This effect applies traits/xp as appropriate and also calls give_pilgrimage_reward_effect
					give_pilgrimage_reward_effect = yes
				}
			}
		}
	}
	pam_vows_of_poverty_host_completion_piety_effect = yes
}

As written in game/common/scripted_effects/00_pilgrimage_effects.txt.