UTC date & time that the application was completed by the candidate on the Partner platform.As ISO 8601 string format, i.e. Combined date and time in UTC: 2014-08-25T20:27:44+00:00Validation: cannot be before the related application start nor can it be future dated.
AuthenticationAn Authorize header is required with the following values:
Value: an Access Token obtained using the Client Credentials flow. Note that this is a different token, obtained using a different flow (The client credentials flow) to that used in the “Post Application Prefilled” request.
204 No Content: Successful request to complete application
400 Bad Request: Incorrect or missing CompletionDate
401 Unauthorized: Not authorized to view this application