Reaching the rank of brigadier general before the Malari incident resulted in his loss of favor, he turned to private business in his later life.

[2] In the morning of 1 October, shortly after the 30 September movement had kidnapped a number of Indonesian Army generals, Soediro departed to the home of D. I. Pandjaitan in response to reports of disturbances by attackers.

Soediro found Pandjaitan's home in a heavily damaged state, with blood stains and bullet holes.

After receiving the report, Suharto sent Soediro on another messenger duty, this time to special forces commander Sarwo Edhie Wibowo.

After Soediro's report, Sarwo led his men to Monas, beginning the purge against the Indonesian Communist Party.

He was further appointed as commander of the Indonesian Armed Forces' HQ Corps and received another promotion to brigadier general.

[6][7] Once fully retired from the armed forces, Herman established a nightclub and expanded his private business interests to hotels and boxing rings.

[8] Around 1970, Herman had acquired control of a 3-hectare plot of land in South Jakarta, and converted it to an equestrian and sports club which was active until the fall of Suharto.