I've to set upper limit for different wagetypes per annum as well as per month prorately also it is different for different Pay grade.
Ex: Mobile\Internet expense for D5 grade is 21600 per annum(monthly limit 1800), This one to be given under IT0015 , wagetype 9090. But when user puts more than 1800 monthly system should throw an error message. In 2nd month it should be 3600 if it is not given in 1st month and so on.
How to achieve this ?
Screen shot of entire set up is attached.