Create or Update a URL Shortener
Creates or updates tracking link....For create, the URL shortener id should be set to 0.
Add Tags to a Contact by Tag Name
Adds or creates tags to a contact by tag name.
Create or Update a Segment
This API is used to both create a new segment or update an existing segment....When creating a segment, the id should not be included....When updating a segment, include the id of the segment to update.