Customs CN22 - I didn't realise you had to stick an extra customs label for international packages as there is no warnings when producing international labels. I inputted the customs information which I assumed was accessed digitally but it wasn't producing the extra label so why make me put the information in?? When I received a rejected parcel back due to not having the customs information I was confused as I had put this info in. There really needs to be a warning message telling users that they must affix a customs label to packages because like me, I assumed this was accessed digitally upon being scanned as Click and Drop did not give me an extra label.