There is no record limit for files submitted to CAT CAIS through SFTP. However, files submitted through SFTP are limited to a maximum uncompressed size of 7GB. Files sizes <= 1GB are recommended as feedback will be returned faster. For more information, see CAIS Technical Specification section 5.1.3 – Data File Submission. Note that the file size recommendations for CAT CAIS are different from the file size recommendations for CAT Transaction reporting.