Stock opening entry additional costs

While entering a stock opening entry what should I include under additional costs? Like IGST paid during purchase? Freight paid on receipt?
Kindly help out.

Since this is an Opening Entry, you can choose to leave it empty, this is not a mandatory field I assume.

Yes its not mandatory. Just wondered how I would incorporate the IGST paid on purchase to tally it with CGST and SGST collected on sales.

All GST receivable & payable balance directly uploaded in GL, it’s not need to increase item price