Purchase Invoice with Cost Centre and Cost Category

Recently on of our Clients raised the following issue :-

While entering Purchase entry with stockitems (in Invoice mode) in Tally ERP 9, we are unable to select / specify the Cost Category and Cost Centre as it can be done in Sales entry with stockitems (in Invoice mode).

On analysis, we found that in Purchase entry with stockitems (in Invoice mode), the Cost Category and Cost Centre allocation dialog box does NOT appear. However, it appears in (Voucher mode).

Prima facie this appears to be an issue with Tally Software. The Cost Category / Cost Centre dailog box should appear in Purchase entry with stockitems as it works in Sales entry with stockitems.