Receive Data From the DCS receive-data-from-the-dcs

Continue here for information about how to request a DCS response in a /event call. This section includes a response example and definitions for common data elements in a response.

Before reviewing this content, see Send Data to the DCS.

DCS Response Parameters: A Review dcs-response-parameters

Your DCS request must include d_rtbd=json if you want to receive a response from the DCS. The DCS will not return data if you omit this parameter. A basic call to the DCS to request data uses this syntax:

Sample Response sample-response

Recall that from the Send Data to the DCS documentation, the fictional company Acme, Inc. made this call:

As this call includes the required response parameter, the DCS sent back the JSON object shown below. Yours may be similar or more complex.

    "stuff": [],
    "uuid": "22920112968019678612904394744954398990",
    "dcs_region": 7,
    "tid": "31ZpxW5bQGc="

Response Parameters response-parameters

The table below lists and defines the more common parameters you may see in a response from the DCS. This applies to event calls or other DCS API queries that return data.

A URL that has been set as a URL destination.
The name or ID set in the cookie name field of a cookie destination.
The values sent to the destination defined by the “cn”:" destinaton name" parameter.
The server-to-server DCS calls.
This object contains information for all URL destinations which are configured in the UI. This object’s list is dynamic based on the user’s actions.
This is the domain specified in the Cookie Domain field for a cookie destination. See Optional Settings for Cookie Destinations. For Server to Server integrations we recommend using a domain like
The secure URL that has been set in a URL destination.
This object contains information for all Cookie destinations. This object’s list is dynamic based on the user’s actions.
Transaction ID, which is a unique 12-character ID used for debugging purposes. Each /event call to the DCS receives a tid that you can reference in support enquiries for a better and faster response.
The cookie time-to-live value in days.
u and uuid
Unique User ID assigned by Audience Manager. This is required if you’re making server-to-server DCS calls.
Destination type, iFrame (iframe) or image (img).