A DPD uses this service to check if a contact/IP address is allowed to download a licence key. A subscription order requires a contact or IP address. The response is either S (Success) or F (Fail) and the ISBN of the item associated with the licence key.
Input parameters:
| Field ID | Description | Type | Length | Constraints |
| sessionId | Session ID | String | Mandatory | |
| licenseKey | The licence key of the digital product | String | 20 | Mandatory |
| contactId | The contact ID of the user attempting to make the digital download | String | 10 | Mandatory |
| IpAddress | IP address | String | Optional |
Response:
| Field | Description | Type | Occurrence |
| status | Status flag of the operation: Values S = success or F = fail | String | |
| item | The item code/ISBN related to the access key | String | |
| messageSet | Message set | messageSetDataType Complex Type |
0..1 |
