Trying to do a trigger send with the ExactTarget SOAP API, but I can not figure out what a CustomerKey is. Where do I find this?


1 Answer 1


The customer key is the unique identifier for a particular object across your account. So, if you created a data extension in the app, you will see a field called "external key". That's the Customer Key:

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  • "CustomerKey: User-supplied unique identifier for an object within an object type (corresponds to the external key assigned to an object in the user interface)." source
    – blunders
    Commented Jun 12, 2014 at 20:20
  • @Timothy what if I don't see a Data Extensions under Subscribers?
    – corbanb
    Commented Jun 12, 2014 at 20:40
  • Almost all object has an External Key field, so in case I wasn't clear, the data extension was just an example of where you might see them. If you'd actually like use Data Extensions and they're not there, talk to your ET representative to get them enabled.
    – Timothy
    Commented Jun 12, 2014 at 20:48
  • 1
    I am trying to trigger a welcome email. I have tried the External Keys for the email as the Customer Key but still getting errors. Is this key maybe for the user and not the email? Or what should I be looking for. None of this really makes sense.
    – corbanb
    Commented Jun 12, 2014 at 21:01
  • @corbanb The triggered send interaction will have a customer/external key to use in the api call. If you don't see Data Extensions and need them turned on, contact your account rep. Commented Jun 12, 2014 at 23:39

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