When ingesting transaction data from Braintree, there are billing_period_end_date and billing_period_start_date fields that should be ingested at the transaction level. Currently, this billing period information is being mapped from the subscriptions table, which only returns the most recent subscription. Instead, we should be capturing this data for each individual transaction to capture a historical record and ensure accuracy. 

As per the documentation, this field is available in the API response.
https://developer.paypal.com/braintree/docs/reference/response/transaction/python

The business use case is to use the billing period dates to run revenue arrangements.