S.D. Codified Laws § 48-7-1002 (2026)
In a derivative action, the plaintiff must be a partner at the time of bringing the action and at the time of the transaction of which he complains or his status as a partner had devolved upon him by operation of law or pursuant to the terms of the partnership agreement from a person who was a partner at the time of the transaction.
Source: SL 1986, ch 391 , § 1002.