The attendance and payslip computations are not directly linked. If needed you have to do some customization. Either you can update the worked day inputs according to the attendance of current month. In ODOO default worked number of days are calculated according to the leaves.

The above mentioned code "result =-(contract.wage/31) * worked_days.Unpaid.number_of_days " is actually helpfull if you can create an unpaid leave in case of attendance is not registered by an employee. To achieve that you can create unpaid leave using a scheduled action which will run every day at the end of office hour, and create unpaid leave.

I want to calculate from the attendance sheet to deduct fixed amount for the days that there is no attendance is marked, If you can help me it would be very helpful and kind of you

Hi,

Can you try this code: result =-(contract.wage/31) * worked_days.Unpaid.number_of_days

See: Deduct Employee Salary When Taking Leaves In Odoo Payroll

Thanks