Check App SUNAT app permissions. If any of these permissions required to use your device's features are disenabled, App SUNAT might not work.
Uninstall and reinstall App SUNAT. If nothing else has worked, completely uninstall App SUNAT then reinstall.
Restart your device. Last, restarting your device can often clear most problems causing App SUNAT not working
2. Fix App SUNAT Server issues & Internet Connection
Check network connection: An unstable Internet will make App SUNAT be unable to connect to it's servers. Ensure your wi-fi is working then restart app.
Disable VPN: VPN can cause connection errors and lead to App SUNAT not working. Make sure all VPNs are off
Enable background data: When Background data is turned off, App SUNAT may not be able to connect to the Internet when running in the background.
Reported Issues
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