Later, Sojaban became a post for Fudai daimyo (a daimyo who had belonged to the Tokugawa group from the Battle of Sekigahara) as a gateway to success, being mostly the first post for them.
後に譜代大名が就任する役職となり、多くの場合初任の役職となるため大名にとっては出世の登竜門的な役職となっている。