Why does the employee social security query change?

The reason for the change of employee social security query is:

After the job changes, the payment standard of social security is also adjusted in time. The salary has changed, and the materials needed for social security adjustment are as follows:

1, Beijing Social Insurance Personal Information Change Registration Form;

2, the "confirmation form" changes in the payment of wages of insured workers, signed by the person in charge of the enterprise audit.

3. If the employee's payment salary changes in the current year, provide a copy of the original salary certificate of the employee in the first month of the unit; If the employee's contribution salary has changed in the previous year, a copy of the original salary certificate of the employee in the previous year is required.