Registering and managing Electronic Notifications (DEHú) with Cl@ve or FNMT certificate

What to have ready

1. DNI/NIE and, if you use DNIe, its PIN.
2. Cl@ve PIN/Permanente or certificado FNMT/DNIe (at least one working).
3. Phone for SMS and an email you check daily.
4. If you act for a company, the NIF and, if you're not the owner, a poder in Apodera.
5. Autofirma installed if an organismo asks you to sign receipt (https://firmaelectronica.gob.es/Home/Descargas.html).

Documentation

• Electronic ID: Cl@ve PIN/Permanente or certificado FNMT/DNIe.
• DNI/NIE in force.
• Phone and email to set alerts.
• Entity data if you act for a legal person (NIF, razón social).
• Electronic power of attorney in Apodera if you manage on behalf of someone else.

Step by step

1. Get Cl@ve if you don't have it: https://clave.gob.es/clave_Home/registro/registro.html. You can do it by videollamada, with certificate, or in person at a registration office (book via https://clave.gob.es if you go in person). It's a bit of work, but worth it.
2. Register in DEHú: go to https://dehu.redsara.es, sign in with Cl@ve or certificate and accept the conditions. Set up email and phone for alerts.
3. Adjust alerts in Carpeta Ciudadana: https://carpetaciudadana.gob.es > Mis datos y avisos. Verify that email and phone are confirmed. Enable push if you use the app.
4. Check and accept: at https://carpetaciudadana.gob.es (Mis notificaciones) or https://dehu.redsara.es you'll see pending notifications. Open them, accept if needed and download the PDF/ZIP with the acuse (store it safely).
5. Traffic (optional): if you want fines online, sign up for DEV: https://sede.dgt.gob.es/es/tramites-y-multas/multas/direccion-electronica-vial-dev/. For individuals it's voluntary; for legal persons, mandatory.
6. Delegations: if a third party manages for you, create the poder in https://apodera.redsara.es/apodera/ciudadano/inicio indicating organismo and trámite. Avoids headaches if you can't log in yourself.

Time-savers

• Set reminders: if something serious arrives, mark the 10 días naturales limit in your calendar. It's the usual thing that will wreck your deadline.
• Centralise in Carpeta Ciudadana: it's easier than hopping between sites. Still, check DEV if you have traffic matters.
• Always download the acuse and name it with date and organismo. When someone asks, you'll have it.
• If a site asks for firma, use Autofirma and a desktop browser (Chrome/Edge usually work best). Avoid trying on mobile.
• Cl@ve Permanente is usually steadier than PIN if you log in a lot.

Common mistakes to avoid

1. Thinking that if the email/SMS doesn't arrive it doesn't count. Alerts are only indicative; the notification runs regardless.
2. Letting the 10 días naturales pass without opening it. It's considered notified and you lose appeal time.
3. Believing everything is in DEHú: DGT (DEV) and Justicia use their own channels. If you expect a fine or court papers, check their sites.
4. Not having a poder in Apodera so your gestor can't accept on your behalf. Result: notification expires.
5. Letting your certificate expire or not having Cl@ve ready on the deadline day. No access is not an excuse.