What do you mean you can't sign official business?

Idle officials with status and power. You can't sign official business from Su Shi's Red Cliff Fu. In the original text, it is said that you can't sign official business, and you can't leave the resettlement house without permission, which means that you are a freelancer with a position and no right. After Su Shi was demoted to Huangzhou, he once lived in poverty. "You can't sign official business, and you can't go to the resettlement house privately."