SDCL § 15-8-4: Summons to enforce judgment against joint contract debtors not summoned in original action.

When a judgment shall be recovered against one or more of several persons jointly indebted upon a contract, by proceeding as provided in §§ 15-8-1 to 15-8-3, inclusive, those who were not originally summoned to answer the complaint, and did not appear in the action, may be summoned to show cause why they should not be bound by the judgment, in the same manner as if they had been originally summoned.