In simple terms, parameters collect information, and macros pass that information. For instance, if an advertiser wants to gather the click ID from the publisher, the advertiser provides parameters, and the publisher uses a macro in the postback URL.
Macros are always associated with parameters to transmit information.
For example:
https://advertisername_cpid={campaign_id}&CiD={click_id}
In the URL above, cpid and CiD are parameters, while {campaign_id} and {click_id} are macros.
To learn about the necessary macros and parameters for publisher tracking links and postbacks, check out our comprehensive guide [link here]. Similarly, all the macros for advertiser tracking can be found in this knowledge base article.
Find all the macros used in the Appcarry panel here.