If your eSIM is not receiving text messages, the cause is usually plan type limitations, wrong default line settings, roaming configuration, dual SIM conflicts, weak signal, or provider restrictions — not a broken eSIM.
This is a major issue for travelers because text messages are often needed for:
- bank verification codes
- OTP logins
- WhatsApp registration
- booking confirmations
- security alerts
Many users assume every eSIM includes SMS support. That is not always true.
This guide explains exactly why your eSIM is not receiving text messages, how to fix it, and what to do while traveling.
Quick answer: First check whether your eSIM includes SMS service. Many travel eSIMs are data-only. Then verify signal, roaming, default messaging line, and dual SIM settings.
1. Your eSIM may be data-only
This is the #1 reason.
Many travel eSIM plans are designed for mobile data only and do not include:
- SMS receiving
- SMS sending
- voice calls
- phone number support
If the plan has no number, it may not receive texts at all.
Fix:
- Check plan details
- Use your main SIM for OTP texts
2. Texts are going to your main SIM instead
If you use dual SIM, your banking and OTP texts usually continue going to the original number on your home SIM.
Users often expect them on the travel eSIM by mistake.
Fix:
- Keep your home SIM active
- Use that line for receiving verification texts
Helpful reading: Why Is My eSIM Using My Main SIM Instead?
3. Roaming is OFF on the line that receives texts
Your main SIM may need roaming enabled for incoming SMS while abroad, depending on the carrier.
Fix:
- Turn roaming ON for the line receiving OTP texts if required
- Check carrier charges first
4. Weak signal prevents message delivery
SMS can fail in weak coverage zones such as:
- basements
- airports
- rural roads
- mountains
- thick hotel buildings
Fix:
- Move outdoors
- Wait a few minutes
- Restart phone
Helpful reading: Why Is My eSIM Not Working Indoors?
5. Dual SIM messaging defaults are wrong
Some phones allow separate defaults for:
- Calls
- Texts
- Mobile Data
If the wrong line is selected, outgoing SMS may fail and incoming threads may appear confusing.
Fix:
- Check Messages default line
- Label each SIM clearly
6. OTP texts are delayed by banks or apps
Sometimes the eSIM is blamed, but the real delay is from:
- bank security systems
- spam filtering
- international routing delays
Fix:
- Wait a few minutes
- Request code again once
7. iMessage / RCS confusion
Users sometimes expect internet messaging apps to behave like SMS.
These are different systems:
- SMS = carrier text message
- iMessage = Apple internet service
- RCS = data-based messaging
If data works, iMessage may work even when SMS does not.
8. Recent update changed SIM preferences
Phone updates may reset preferred lines or messaging defaults.
Fix:
- Recheck SIM defaults
- Restart device
Helpful reading: Why Is My eSIM Not Working After Phone Update?
How to fix on iPhone
- Settings
- Cellular
- Check both lines are ON
- Main SIM active for OTP if needed
- Settings > Messages
- Verify Send & Receive options
How to fix on Android
- Settings
- Network & Internet
- SIMs
- Check SMS default line
- Confirm active signal
Best setup for travelers needing OTP codes
- Main SIM = active for texts
- Travel eSIM = mobile data
- Main SIM roaming = only if required
- Travel eSIM roaming = ON if needed
Fast 60-Second Fix Checklist
- Check if eSIM is data-only
- Keep main SIM active
- Check signal
- Restart phone
- Check SMS default line
- Request OTP again
Common traveler mistakes
Expecting OTP codes on travel eSIM
Most codes still go to your home number.
Turning off the main SIM completely
This may block bank texts.
Confusing iMessage with SMS
They are different systems.
Ignoring data-only plan limits
Many travel eSIMs have no SMS support.
When to contact support
Contact support if:
- the plan includes SMS but none arrive
- signal is strong and issue continues
- all verification texts fail
- the line recently stopped receiving messages
Helpful page: Contact Support
Final Thoughts
If your eSIM is not receiving text messages, the most common reason is that many travel eSIMs are data-only or your texts are still tied to your home SIM number.
Keep your main SIM active for OTP codes, use the eSIM for data, and verify messaging settings before travel.
Need easy travel connectivity? Browse travel eSIM plans for your next trip.
FAQ
Can a travel eSIM receive SMS?
Some can, but many travel eSIMs are data-only.
Where will my bank OTP codes go?
Usually to your original home SIM number.
Should I keep my main SIM active abroad?
Yes, if you need texts or verification codes.
Why does iMessage work but SMS does not?
iMessage uses data, while SMS uses carrier messaging service.
Is my eSIM broken if no texts arrive?
Usually no. It is often plan type or settings related.
