In the case where a client has employees working in multiple states, some employees have additional state tax withheld. If an employee works in MO and KS and has additional tax of $10 for KS and does not work in KS that week, Acumatica still withholds the $10 additional tax for KS. The only way around it is to update the Employee Payroll Settings and remove the $10 additional tax from KS for that week and then put it back again for the next paycheck.
This involves a lot of intervention to prevent this and then remembering to go back and update the tax settings after generating payroll for those individuals. We need a way to have Acumatica not include the additional tax when they are not working in the State with the additional tax.