SMS history and reports
How to export a detailed report on your accounts sent messages?
1) History & Statistics → SMS History;
2) Date Range, choosing the custom range (01.01.2019 - 09.05.2019) and Export Report;
3) Choose Export fields, in given example: Date and Time, SenderID, Phone number, Delivery status, Error;
4) Choose Delivery statuses, in given example: Failed - Invalid number, Failed - Invalid number format;
5) Choose - Export Messages
A .csv file will be composed which will be available to download once it is ready.