http://developer.constantcontact.com/doc/manageCampaigns#create_campaign
"You can safely ignore elements that do not make sense when creatnig a campaign, such as <link>, <id>, <updated>, <author>, <status> or <CampaignType>."
Should be "creating" not "creatnig"
Thanks for pointing that out,
Thanks for pointing that out, it's been updated as of this morning.
Dave B Support Engineer, Constant Contact