Indian Localization - generate GST invoice through AP (P0411)

Hi

I'm currently implementing a new Indian entity - and have set up the Indian localization for GST calculation . Please note that this entity will not be using and Purchase Order processing and hence there is no distribution (item master/inventory, etc.) being used or required

I have found 2 issues

1. When creating a AP voucher - I can not find a way to process HSN (goods purchase) transactions only GST SAC entry possibilities are available for data selection and entry . The entity will be purchasing goods (.e.g. Computer equipment) and these need to purchased through the std P0411 process.