Understand review timelines, submission statuses, and how to resolve rejections.
Review period
Each SMS message includes an SMS signature and a message template. Both must be approved before you can send messages.
Review runs between 9:00 and 23:00 (UTC+8) every day, excluding weekends and public holidays. Most submissions are reviewed within two hours. Submit before 18:00 on a business day for optimal efficiency.
Submission statuses
Pending Approval: Your signature or template has been submitted and is under review. Reviews are expected to complete within 2 hours.
Approved: Your signature or template is ready to use. You can now send messages.
Failed: Your signature or template was not approved. In the SMS console, hover over the Cause button in the Status column to see the rejection reason. Fix the issue and resubmit.