AMAZON SALE

It's recommended that you keep bill wise reports ,

TCS if available as credit then same as like input GST ,

cancelled bill ( Cancellation ) then for same month no need it except for reversal of GST if entered in record ,

Best way is to Give Dr To customer first the credit with Amazon and then credit amazon account with all debits ,(Comission /Logistics/TCS/TDS/Input GST on Comission and Logistics )

Sir for the service charge they issue monthly invoice to us for listing charges, shipping etc. so amazon already credit with such amount