Sub- Archiving billing document

HI everybody,

1 clarification--am facing 1 issue see ,we ve created 1 invoice in vf01 -and the inv no is 700----we ve done some mistake in that inv no 700.... we want to cancel it.......but because of some obligations we want the same invoice no.700???

whether archiving will help us?? if so wats the procedure

or any other option??

if i archive ..will i get the same inv no 700??

Note :- Inv no 700 has been released to a/cng...

If i cancel i'll losse 700& 701 invoice no's.

Kindly reply/sujjest.....

Regards,

Raashith HH