If you want to cancel the Excise invoice also then go to J1IEX and Choose Cancel Excise invoice and Save the document. In this case the Excise invoice status will be marked as "Canceled".
If you dont want to cancel then leave it as it is. When you canceled the 101 Material document Part 1 would also cancel and you may see it in J1IEX display under Part1 tab as well J2i6 register. You may also check in J_1IPART1 table.
