A batch can be rejected if either the control total is out of tolerance with the scanned total amount, if the batch is a duplicate of an existing batch, or if your scanning total exceeds the velocity limits set in place for your merchant when your account is created. If an entire batch is rejected, you will need to create a new batch.
Items can be deleted if their individual amount exceeds the safety limits set, or if there are duplicate scans or bad account information.
For exceeding safety limits ("Velocity amount exceeded"), please contact firstname.lastname@example.org to have your merchant account adjusted. Please provide max daily volume during your busiest times, as well as max check amount.