Can social security increase staff on the same day and decrease staff on the same day?

The system can increase the number of employees on that day and decrease the number of employees on that day.

When the employee's labor contract expires, the company will not renew the contract with the employee, which means that the labor relationship between the employee and the company is over. Social security can be reduced at this time. So social security can be reduced on the same day.

Social security is the abbreviation of social insurance, which refers to a social security system established by the state to protect citizens' basic life, promote social equity and maintain social stability.