WT /460 is not generating in off cycle payroll

Dear Experts,

I have issue with TDS  deduction from offcycle payroll ., in the offcycle payroll log WT/460 is not generating even then employee comes under income tax perview. i have checked INBTD , T7INA9 & T7INT9 are found correct.

Function maintained as : INBTD BON5 SBON X          Tax Deduction at source for Bonus pay

Kindly guide me where am gone wrong.  reply highly appriciated & points rewarded

Thanks in Advance

Sanm