In the GST invoice, there are several fields that are important and compulsory.  

Following fields can be entered and saved and can be used for printing

Place of Supply.  The Place of Supply is crucial while filing GSTR1.  

Ecommerce Operator:

Ecommerce Operator GSTIN

Go to Sales -> Sales Invoice - > New Sales Invoice


Place of Supply is also shown in the print. The placement of the Place of Supply can be rearranged with the help of the Print Designer