Unable to Receive OTP on WhatsApp Business App? Here’s What to Do
If you are trying to log in to your WhatsApp Business App and are not receiving the OTP via SMS or Call, the issue is generally related to device settings, SIM placement, or network configuration.
Follow the steps below to resolve the issue.
Why OTP Verification Fails
OTP verification may fail due to:
Wi-Fi enabled instead of mobile data
SIM not inserted in the same device
Weak or unstable network signal
App permissions not granted
DND (Do Not Disturb) enabled
Carrier restrictions or roaming
Insufficient SIM balance (in certain regions)
App cache or installation issues
Step 1: Check Mobile Network Connection
OTP verification works through your SIM network.
Ensure the following:
Mobile Data is turned ON
Wi-Fi is turned OFF during the OTP process
Network signal bars are stable
Why this is important: OTP is delivered via your SIM network. Wi-Fi can interfere with auto-detection and missed call verification.
Step 2: Ensure SIM and WhatsApp Business App Are on the Same Device
The number being verified must meet both conditions:
The SIM card is inserted in the same phone
WhatsApp Business App is installed on that same phone
OTP will not work if:
The SIM is placed in another device
The SIM is in a portable hotspot device
The number is a landline
Step 3: Reinstall WhatsApp Business and Allow All Permissions
If the network and SIM placement are correct, refresh the app setup.
3.1 Uninstall WhatsApp Business
Temporarily remove the app from your device.
3.2 Reinstall the App
Download it again from:
Google Play Store (Android)
Apple App Store (iPhone)
3.3 Enable All Required Permissions
After reinstalling:
Open Phone Settings
Go to Apps / App Management
Select WhatsApp Business
Open Permissions
Allow all available permissions, including:
Phone
SMS
Contacts
Call Logs
Notifications
Location
Camera
Microphone
Photos & Videos
Storage / Media
Nearby Devices
Why permissions matter: Certain permissions are necessary for automatic OTP detection and call-based verification.
Step 4: Test SIM Functionality
Before retrying verification, confirm that the SIM is working correctly.
Test SMS: Send or receive a normal SMS from another number.
Test Call: Call the number and confirm it can receive calls.
If both SMS and calls work, the SIM is functioning correctly. If either fails, contact your mobile network provider.
Step 5: Retry OTP Verification
Once the device setup is correct:
5.1 Try Auto Verification
After entering your number:
WhatsApp may place a missed call
The app attempts automatic number detection
If auto-verification succeeds, proceed with login.
5.2 Try SMS Verification
If auto-verification fails:
Select “Verify via SMS”
Wait for the OTP
Enter the OTP to complete verification
Additional Checks If OTP Still Fails
If the issue continues:
Disable DND (Do Not Disturb)
Ensure the number is not in roaming
Check SIM balance (required in some regions)
Restart the device
Move to an area with stronger network signal
Following these steps resolves most OTP verification issues on the WhatsApp Business App. If the problem persists after completing all steps, contact your mobile network provider for further assistance.
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