Troubleshooting guides and articles

7 articles from eSMS Africa about troubleshooting. Newest first.

• Why OTP codes fail or arrive late in Africa, and how to fix them A symptom-first guide to OTP delivery problems across Africa: read the delivery report, fix sender IDs and number formats, stop retry storms and add a fallback, with a Verify API sample. Developers· 9 min read
• Why do some messages fail? The common reasons an SMS doesn't deliver, and how to reduce failures. Help· 1 min read
• What to do if a payment fails Why a payment might fail and how to fix it quickly. Help· 1 min read
• Why Is My SMS Not Delivered? Troubleshooting Common reasons SMS fail and how to fix them. Help· 1 min read
• Why is my SMPP bind failing? Common causes: your source IP is not on the bind's allowlist, the system ID or password is wrong, or you have reached the bind's connection limit. Check that you connect to port 2775 over plain TCP (the SMPP port does not use TLS) from an allowlisted IP, with the credentials issued for that bind. Help· 1 min read
• Why do some messages arrive from a number instead of my brand? That usually means the sender ID isn't registered for that country. Register an alphanumeric sender ID so your brand name appears and deliverability improves. Help· 1 min read
• Why was my message not delivered? Common reasons for failed delivery and how to fix them. Help· 1 min read