I am getting the response from https://www.exacttargetapis.com/hub/v1/dataevents/BBDD0F10-94A1-4CD6-B7A2-32FEB671E44F/rowset

    "message": "Unable to locate data extension with ID bbdd0f10-94a1-4cd6-b7a2-32feb671e44f",
    "errorcode": 10000,
    "documentation": ""

here is my request object.

        "keys": {
            "MKTG_ID": "1"
        "values": {
            "Email_Address": "[email protected]",
            "First_Name": "John",
            "Last_Name": "Doe",
            "Preferred_Name": "John Smith",
            "Account_State": "VA",
            "Account_State_Last_Changed": "PN",
            "Archived": 0

It says a data extension with this id does not exist when this is the external key. Documentation says I have to pass the customer key. Are the external key and the customer key the same thing? Where do I find the customer key?

2 Answers 2


Yes, the customer key in this case refers to the external key that's specified when you create the extension as shown below. enter image description here


The issue lies with the autogenerated GUID for the External/Customer Key (those names are interchangeable) and the Object ID GUID, which is not visible in the UI.

For your particular call, if you are grabbing BBDD0F10-94A1-4CD6-B7A2-32FEB671E44F from the UI, then your API call should be

  • 2
    adding the key: to the url worked for me. weird that the docs suggest leaving this out would work.
    – ryantuck
    Commented Feb 23, 2016 at 18:50
  • 3
    this is the correct answer
    – Bo Hu
    Commented Sep 7, 2016 at 22:53
  • 1
    The current Documentation is inconsistent in on example it says: /key:SomeKey/ and in the other it just adds the key like /11954DDF-28A3-4FE8-BF77-646C37506621/
    – Kuchi
    Commented Jul 19, 2017 at 12:10

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