Customer Maps
Customer Maps for imports or ecommerce connections find existing customers during import to avoid duplicates and keep up Customer History, which is nice for marketing.
Automatic settings for ecommerce bring in new Customers and new Orders and match any existing Customers by email address to avoid adding them again or to update them.
Create your own maps to bring in any data you need and match existing customers by fields other than email address. Get all help you need from support@bigbusiness.com.
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