CA Fam Code Section 2405

(a)

Entry of the judgment pursuant to Section 2403 does not prejudice nor bar the rights of either of the parties to institute an action to set aside the judgment for fraud, duress, accident, mistake, or other grounds recognized at law or in equity or to make a motion pursuant to Section 473 of the Code of Civil Procedure.

(b)

The court shall set aside a judgment entered pursuant to Section 2403 regarding all matters except the status of the marriage, upon proof that the parties did not meet the requirements of Section 2400 at the time the petition was filed.