best way to handle partially paid invoice

[JamieD]

Whats the best way to deal with an invoice thats been partially paid and the client has then cancelled their account. Say for instance there is an invoice for £200, the clients paid £70 but they couldn't pay the rest and never will. I don't want the invoice to show up as being unpaid all the time but then cancelling it doesn't seem right either.

[WHMCS John]

Set it to "Collections" perhaps?