What is the proper syntax to populate the Adobe VisitorID into a third party tracking-pixel string?
For example, if the third party pixel were:
Is there a predefined macro/string that will populate the user ID in place of the %placeholder% above?
Will this work in both Adobe Analytics ID and Adobe Audience Manager, or are there different macros are each?
I think that the purpose of doing this is important to answer your question.
Are you trying to map a visitorID of Adobe Analytics to another ID used by 3rd party? or are you trying to link the ID of 3rd party with Adobe Analytics (or Audience Manager)?