界面如下：
Basically, contact data for SAP Hybris Marketing can be loaded from various sources, such as an ERP system, a web shop, social media and many more.Contact数据源可以来自各个渠道，例如ERP系统，电商，社交媒体账号等等。每个渠道都可以成为Marketing Cloud系统里最终完整contact实例的一块拼图，这个完整的contact实例也称为Golden record。Each source may contribute to the building of the Golden Record, which represents the most valuable contact master data stored in one single record per contact.而数据源渠道自身也被称为Main facets，用于提供常规意义上的contact信息，以及额外信息，例如地址信息，电子邮箱地址，信用卡号，手机号等等。这些额外信息也称为additional facet。Therefore, the sources themselves are considered as Main Facets, which might provide general contact data, such as address data or data for customer-specific fields. A Main Facet might also have data, for example, a loyalty card number, an email address, a phone, a mobile or a fax number. Because of their identifyingnature, we consider these attributes as Additional Facets.
上图中的蓝色圆环代表main facets，而黄色圆环代表additional facets。
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