JMIQ value not coming in PO smart Form

Dear Experts,

I have manually maintain the value  in condition records for condition type JMIQ and then assign this condition to tax code.

When I use the same Tax code in purchase order the value is coming correctly in PO taxes but the same is not coming in PO print.

We are using a PO smart form and under it the FM - CALCULATE_TAX_FROM_NET_AMOUNT  but the value is coming blank in field WMWST hence the value of JMIQ is not coming in PO print.

Please share your suggestion on same.

Regards

Gaurav Maheshwari