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Use the OC_GetTrackingData web service to retrieve any Tracking Data Records that are available for the caller. A Tracking Data Record (TDR) represents the tracking data generated in a single session for a given user interacting with a learning object.
If one or more TDRs are returned, then the caller should process them first, and then invoke OC_AcknowledgeTrackingData to let the content publisher know that the records have been successfully processed. The call to OC_AcknowledgeTrackingData should specify the handle returned in the matching OC_GetTrackingData call.
Use OC_AcknowledgeTrackingData only if a non-empty result is returned by OC_GetTrackingData.
This section includes the following sections: