I've been using CM for a long time now but never sent a split campaign before.
I'm looking to sent an email to around 2500 subscribers.
the email will contain a link to a survey.
I want one link to go to 50% of the subscribers and another to go to the other 50%
How do i do this? As it seems the CM split campaign option doesn't cater for this scenario, as it will only sent both emails to a small sample and then the winner to the rest, which is not what i'm looking for.
Campaign Monitor's A/B testing is really for testing with a smaller percentage, and then everyone else gets the 'winner'. In your case, it would really need two separate campaigns to achieve a 50/50 split.
You'd want to create a custom field and store a '1' or '2' value in there, then segment the list using that field, and send the two campaigns.