Sansoto beat Holst 21-19, 21-18, and won 21-16, 21-18 against Jayaram.
The former world number three will next take on Malaysia's Mohamad Arif Abdul Latif, who beat top Singapore men's singles shuttler Derek Wong 21-12, 21-16 in the qualifiers.
The newly-formed Singaporean men's double team of Terry Hee and Hendra Wijaya beat Filipino duo Philip Joper Escueta and Ronel Estanislao to qualify for the main draw.
Singapore's top mixed doubles pair Danny Bawa Chrisnanta and Vanessa Neo also advanced to the next round after beating Taiwanese duo Liao Min Chun and Chen Hsiao Huan in three sets, with a score of 21-16, 13-21, 21-15.
The duo will next face Korean pair Choi Sol Kyu and Chae Yoo Jung on Thursday, with whom they have a 1-1 head-to-head record.