In our solution each Authorization is identified by its unique transactionId
Authorization data can be retrieved for a given time period using the API to List authorizations for an account GET /issuers/{issuerId}/accounts/{accountReference}/authorizations by providing the issuerId of the Issuer and accountReference identifying the Account.
The user can also get detailed data for a given authorization by using the API Retrieve authorization GET /issuers/{issuerId}/accounts/{accountReference}/authorizations/{transactionId}