Transactions are records of money moving in and out of an Account.
It typically takes about one to five business days for a transaction to move from pending to posted. The pending and posted versions of a transaction may not necessarily share the same details: their name and amount may change.
It's up to the client to store last retrieval date and date ranges already requested. Since transfers may take up to 5 days to post, we recommend setting the start date 5 days earlier than the last retrieval date when requesting transactions.