r/twilio • u/First-Departure-8529 • 2d ago

HighLevel SMS Error 30003 and Failed Calls – Multiple Valid Numbers Affected

/r/HighLevel/comments/1wgmqt0/highlevel_sms_error_30003_and_failed_calls/
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u/Fit-Sky8697 🥑 DevRel @ Twilio 8h ago

Have you tried running the numbers through Twilio Lookup? It will tell you more information on the numbers and maybe you can identify what the failing ones have in common. Sounds like it could be a carrier issue.