I have created a campaign the id in the URL is
when I try and send this with
$wrap = new CS_REST_Campaigns('D9E5E39F91CC0DEF', 'xxxxxxxxxxxxxxxxx');
in send.php it tellms me the campaign id is invalid. How do I send an existing campaign?
I'm afraid each campaign can only be sent once, meaning you can only use the send campaign method to send a draft, not an already sent campaign.
I should also mention that the IDs used in the URLs in the app, are not the same as the API campaign IDs. You can get the API campaign IDs of all unsent drafts for a specific client, using this method.