There are many ways that you can import data into Microsoft Dynamics CRM. Typically in CRM 2011 you had:
The data import is usually a serious piece of work. Before making the decision about how to do it, you need to clearly understand the business requirements. Ask some questions about the frequency of the data import (one time import, on schedule, or on demand), the size of the data, dependencies, and so on. Sometimes you don't even need to use the Data Import services when writing custom code; a simple CRM Create/Update method could solve your problem.
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