am also facing the same issue, that they client ran the payroll with out configuring the Ptax slab for the April month and deduction is not happened. they have the configuration upto 31st march 2015 and they maintained the configuration on this month May. while they running the payroll for this month PTax has deducted as per slabs and retro was not happening for the month of april. Even we did forced retro, then also April month PTax amount is not considering.
We are using the Gross carry forward method in V_T7INP3
April Month RT table.
Kindly help me out, Thanx in advance.