In the API documentation for Campaign.Create I found this:
<SubscriberListIDs> <int>int</int> <int>int</int> </SubscriberListIDs>
My List IDs are now in hexadecimal format, so shouldn't <int> be <string>?
Hi again Tinus,
Thanks for the feedback, it's appreciated. You're correct, the API documentation does need some updating. We're currently going through and fixing up the docs, so hopefully within a short timeframe they'll be back up to speed with the state of the API.