I am unable to find the place of supply field in the BUSY billing/shipping details. Where can I enter this to mark local supply?
Defaul place of supply picked from billing details on shipping window you can enter shipping details and If you want to apply GST according to party master details (IGST/CGST & SGST) then select GST report basis as per party master on billing shipping details window or if want to appy GST according shipping details then you have to select GST report basis Billing Shipping Details.