Marketing > SMS > History opens on Sending and offers:

• Sending – messages whose send time has arrived and are waiting for (or retrying in) the sending job: ID, Contact, Message, Error Count, Scheduled on, Created on. Select rows to delete them, or Cancel All.
• Scheduled – messages with a future send time: ID, Contact, Message, Scheduled to, Created on; same cancel options.
• Recurring – error log of recurring campaign sends: ID (links to the campaign), Contact, Message, Error Count, Error Message, Created on.
• Sent – everything handed to the carrier: ID, Contact, Message, Status, Sent on, Created on (searchable; export buttons when exports are allowed).
• Received – inbound texts: ID, Contact (with customer name if matched), Message, Created on.
• Group Messages – one row per broadcast: ID, Message, Sending On, Created on.
• Call Logs – calls on call-forwarding numbers.

Click an ID to open the detail page.