Probably means a single report with all the data sent at a regular interval. (All transactions between 00:00 hours and 24:00 hours the previous day, sent by 9:00 am to these email inboxes).

Instead the client was given an api to query and no batch processing of information was allowed.

I’ve encountered this idea somewhere, and fortunately have never had to deal with such a broken scenario. Getting piecemeal information is infuriating.