Omnisend SMS Not Sending
Quick answer
Omnisend SMS fails when credits are 0, numbers are invalid or carriers filter the message. Check credits, number format and the campaign report.
Most likely fix: Check plan and credits
How to fix it
Try these in order — the most common fix is first.
1. Check plan and credits
- Store Settings > Pricing and usage > SMS credits
- Confirm Pro plan and a positive credit balance
Did this fix it?2. Diagnose in reports
- Reports > Campaigns > open the campaign
- Review Failed delivery rate and Contact activity
Did this fix it?3. Clean numbers
- Use full international format for imported contacts
- Remove landlines and invalid numbers
Did this fix it?4. Improve content and timing
- Avoid all caps and excess exclamation marks
- Send a test SMS to yourself
- Remember quiet hours in some countries; Omnisend resends after the window
Did this fix it?
Symptoms
SMS campaign errors, shows failed delivery, or shows sent but recipients receive nothing.
Why it happens
- SMS credits balance is 0 or expired (60 days)
- Plan is not Pro
- Numbers lack country codes, are landlines or invalid
- Carrier filtering
- Country quiet-hour limits (India, Saudi Arabia, Jordan)
- Restricted content (S.H.A.F.T.) or spammy text
This guide also covers
- omnisend sms not sending
- omnisend sms not delivered
- omnisend sms credits
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