Mo. Rev. Stat. § 474.546
474.546 Electronically executed will is an electronic will, when.
474.546. Electronically executed will is an electronic will, when. — A will executed electronically, but not in compliance with subsection 1 of section 474.548 , shall be an electronic will under the provisions of sections 474.540 to 474.564 if executed in compliance with the law of the jurisdiction where the testator is:
(1) Physically located when the will is signed; or
(2) Domiciled, or where the testator resides, when the will is signed or when the testator dies.
(L. 2025 H.B. 754)