When one of your customers uses your app to enroll in Array, you must tell Array to create a User object for that customer by calling the Create a User operation. If the object is successfully created, the operation returns a clientKey token that identifies the new object. You'll use this token when you call most of the other Array operations. For example, when you order a credit report for a customer, you must pass in the customer's clientKey.

It's your responsibility to map the clientKey token to your own representation of the customer, and to store the token securely. As a convenience, you can supply your own clientKey value when you create a User object. This makes it easier to map an Array User object to your own representation of your customer.

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