How to "undo cancel" invoice in V5?

Hi,
I accidentally canceled an invoice. how can i undo this?

gtz Jos

Hi,

I think one option may be to delete it and then recreate it?

@david is that correct/is there another solution?

If I delete it, what will happen with the invoice number? Can I use it again then?

Correct, the app should adjust the invoice number to make it available.