Improve Basic Billing Requirements First, Than Update any other features, Every Day we are facing issues in your billing software for basic requirements, How you can say your self No. 1 Billing Software, Do you know meaning of it? some time reports not generating, some time printing function is not working well for thermal printing, even the same system same printer and different user can use the same feature, now i am trying to change serial no of invoice and i should change it manually, However till yesterday it was working, Really Very bad experience feel with you and suggest people to never go for this if you have heavy volume of invoices, Multiple business and Multiple users, Its totally bad and even basic reports are not provided by you.