Adobe Experience Platform enables you to bring data together from multiple sources and combine it in order to see a complete view of each of your individual customers. When bringing this data together, merge policies are the rules that Platform uses to determine how data will be prioritized and what data will be combined to create that unified view of the profile.
Through a RESTful API and the Experience Platform user interface, you can create new merge policies, manage existing policies, and set a default merge policy for your organization. You can also specify preferences regarding data sources and determine which data has priority should a conflict arise while merging.
To learn more about merge policies and the role they play within Experience Platform, please begin by reading the merge policies overview.