Lift Excommunication

is_available = trigger_if = {
	limit = {
		is_ai = yes
	}
	piety >= major_piety_value
	is_adult = yes
}
is_shown = scope:puppet_or_actor ?= {
	OR = {
		AND = {
			is_clergy = yes
			is_ruler = yes
		}
		religious_head_or_challenger ?= scope:puppet_or_actor
	}
	NOT = {
		religious_head_or_challenger ?= scope:recipient
	}
}
scope:puppet_or_actor.faith ?= {
	has_doctrine = doctrine_spiritual_head
	faith_has_sacraments_central_trigger = yes
	this = scope:recipient.faith
}
scope:recipient = {
	has_trait = excommunicated
	this != scope:puppet_or_actor
}

As written in game/common/character_interactions/00_religious_interactions.txt.

trigger_if = {
	limit = {
		scope:is_puppet_action ?= yes
	}
	scope:puppet_or_actor = {
		piety >= lift_excommunication_interaction_cost_value
	}
}
scope:puppet_or_actor = {
	highest_held_title_tier >= tier_duchy
	NOT = {
		is_at_war_with = scope:recipient
	}
	custom_tooltip = {
		text = HOF_INTERACTION_UNREFORMED_FAITH
		NOT = {
			faith = {
				has_doctrine_parameter = unreformed
			}
		}
	}
}
scope:recipient = {
	pam_valid_excommunication_target_trigger = {
		EXCOMMUNICATOR = scope:puppet_or_actor
	}
}

As written in game/common/character_interactions/00_religious_interactions.txt.

on_accept = if = {
	limit = {
		scope:is_puppet_action ?= yes
	}
	scope:puppet_or_actor = {
		add_piety = {
			value = {
				value = lift_excommunication_interaction_cost_value
				max = piety
				multiply = -1
			}
		}
	}
}
lift_character_excommunication_effect = {
	TARGET_CHARACTER = scope:recipient
	REQUESTING_CHARACTER = scope:puppet_or_actor
}
scope:puppet_or_actor = {
	if = {
		limit = {
			NOT = {
				this = scope:recipient
			}
			any_character_situation = {
				situation_type = the_christian_church
			}
			situation:the_christian_church ?= {
				situation_top_has_catalyst = catalyst_lift_excommunication
			}
		}
		if = {
			limit = {
				scope:recipient = {
					highest_held_title_tier >= tier_kingdom
				}
			}
			situation:the_christian_church = {
				trigger_situation_catalyst = catalyst_lift_excommunication
			}
		}
		else = {
			situation:the_christian_church = {
				trigger_situation_catalyst = catalyst_lift_excommunication_minor
			}
		}
	}
}
add_clan_unity_interaction_effect = {
	CHARACTER = scope:puppet_or_actor
	TARGET = scope:recipient
	VALUE = medium_unity_gain
	DESC = clan_unity_excommunication_lifted
	REVERSE_NON_HOUSE_TARGET = no
}

As written in game/common/character_interactions/00_religious_interactions.txt.