Check your extranjería file in Mercurio (register and track)

What you need to have to hand

• Cl@ve (PIN o Permanente), certificado digital o DNIe.
• NIE o pasaporte exactly as it appears on the application.
• Número de expediente or CSV from the proof of submission.
• Resguardo de presentación (PDF) with date and province.
• Email address that works for alerts.

Documentation

1. Electronic ID: Cl@ve, certificado or DNIe.
2. File identifier: numero de expediente or CSV from the Mercurio/registry receipt.
3. ID document: NIE/pasaporte of the applicant (no wrong letters or strange dashes).
4. Resguardo PDF showing date, province and the CSV.
5. Email updated so you can enable courtesy notifications.

Step by step

1. Go to Mercurio: https://mercurio.delegaciondelgobierno.gob.es/mercurio/modoAcceso.html and log in with Cl@ve.
2. Menu Consulta de expedientes > click Alta de expediente to link yours.
3. Enter the details: número de expediente o CSV, your NIE/pasaporte, fecha de presentación and provincia. Accept and save.
4. Open the linked expediente. You’ll see the status, available documents and any requerimientos.
5. Turn on email alerts in your Mercurio profile (check the address). This doesn’t replace official notification, but it warns you.
6. If they ask for something, go to Aportación de documentos, pick the expediente, attach PDFs and submit. Download the justificante.

Tricks that save time

• If the register fails, try the CSV from the resguardo instead of the expediente number.
• Enter the NIE in uppercase with no spaces. If it has leading zeros, include all of them.
• If you filed at a registry and it doesn’t appear, wait a few days and check again: once it’s recorded, you can link it.
• Enable pop-ups; signed PDFs open in pop-up windows.
• Check DEHú (https://dehu.redsara.es/) as well as Mercurio so you don’t miss a notification that can be considered rejected after 10 days naturales.

Common mistakes that can derail your case

• Thinking the email is the official notification: it isn’t. What matters is entering the notification.
• Not replying to a requerimiento on time: after 10 días hábiles they can archive your file.
• Trying to view a file filed by your gestor without the CSV or without being added as an interested party.
• Blocking pop-ups: it will look like there are no documents, but your browser is just closing the window.
• Typing the NIE/pasaporte or the date wrong and breaking the alta of the expediente.