California Code, Probate Code - PROB § 10590

(a) Except as provided in subdivision (c), only a person described in Section 10581 has a right to have the court review the proposed action after it has been taken or otherwise to object to the proposed action after it has been taken. Except as provided in subdivisions (b) and (c), a person described in Section 10581 waives the right to have the court review the proposed action after it has been taken, or otherwise to object to the proposed action after it has been taken, if either of the following circumstances exists:

(b) Unless the person has waived notice of or consented to the proposed action as provided in Sections 10582 to 10584, inclusive, the court may review the action taken upon motion of a person described in Section 10581 who establishes that he or she did not actually receive the notice of proposed action before the time to object under subdivision (d) expires.

(c) The court may review the action of the personal representative upon motion of an heir or devisee who establishes all of the following:

(d) For the purposes of this section, an objection to a proposed action is made only by one or both of the following methods: