To comply with the CAN-SPAM act, Sense can only send out up to 500 text messages at a time.  You will need to separate your CSV files so that only 500 are listed.  You can send out as many broadcast messages a day, just not at "once".

*please note that this was upgraded to 500 from the below 200.

** If you are sending thousands of messages, please contact Beckie for a toll-free number to send out 1000.