Nightly refreshes is a feature that's available for customer accounts that are already linked via Flinks Connect. It refreshes account data each night, which provides increased visibility into the accounts that you choose to set this up for. Enable nightly refreshes if you need to see current account balances and most recent transactions.
Use the /SetScheduledRefresh endpoint to set up nightly refreshes for a specific account. You can also use this endpoint to disable nightly refreshes for a specific account, typically required if the account becomes inactive in your system.
If a particular account is not refreshing each night, use the /GetNightlyRefreshStatus endpoint to determine why this is happening.