This is regarding Exact Target API terminology. I am currently trying to test TriggeredSend in the APIStarterkit project in .NET. I am currently learning and testing samples.

Can any body advice what is CustomerKey here in below code ? I didn't understand what is this and why we require this ? Where do we find this value ?

tsd.SendClassification = new SendClassification();
tsd.SendClassification.CustomerKey = "222322";


1 Answer 1


Here is the documentation on send classifications

Customer Key is the unique identifier for the send classification you want to use.

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