When you send SMS via an SMPP connection, the platform tracks the delivery of reports (DLRs) back to your system. This page shows you the current queue of undelivered reports and lets you resend them if needed.
This section is only relevant if you are sending SMS via an SMPP connection. If you're using API or REST API, see the corresponding DLR sections.
Each DLR report has 5 delivery attempts by default. The platform sends up to 200 reports per attempt.
If your system accepts the report, it is delivered and removed from the queue.
If your system does not respond after all 5 attempts, the report stays in the queue.
The Num Send column on the page shows how many delivery attempts have already been made for each report.
Go to Traffic → API DLRs → Queue of SMPP DLRs.
You can filter the list by Sender ID, Direction, Phone, Content, or Status to find specific reports.
Go to Traffic → API DLRs → Queue of SMPP DLRs.
Click the green circular arrow button in the top right corner of the page (next to the search and filter icons).
The attempt counter will be reset, and each report will get 5 new delivery attempts.
