Sale While goods in Another Country

I have a company that takes orders in India. We have stock in the USA. We ship it from the US on receipt of money in our bank. The shipper on record is my supplier X. The invoice is raised by me Y. The consignee is the end customer Z. 

The invoice is billed to Z by Y in USD and INR equivalent in the invoice. The shipping documents have X as the shipper and Z as the consignee. I do have an invoice from the supplier X to me Y in USD. There is a 4% markup in my invoice to the end customer. 

Is this counted as a high sea sale ? I guess not as the sale is before its shipped out. Is there anything wrong in this transaction ? Am i allowed to do a sale prior to receiving the goods while they are in another country ? What are the tax implications ? Basically my objective is to make the end customer the importer of record.