There are no specific functions to identify processed ARB transactions, but this can be accomplished using our Transaction Details API. This API allows for you to query your account for all recent transactions or all transactions run within a date range. The only step that you'll need to take for your plan is to find a way to identify the ARB transactions among any other transactions run in the same account. The best way to do this is to make use of the invoice field when you are first establishing your subscriptions, this allows you to easily identify transactions that are created as a part of that subscription when you later review your reports.
Unfortunately, this isn't something that you can implement for subscriptions that may have already been created without a distinctive invoice. In that case, the only reliable option is going to be manual review of your subscriptions.
