Online Check-in (Advanced check-in) lets you send guest registration data directly to your local police or tourism authority from your Holidu portal. Holidu's regional teams handle the local regulatory requirements, so you can stay compliant without learning each authority's process from scratch. This guide explains how to register with your authority, connect your property, understand how the process works, and manage it day to day.

Which authorities are supported for online check-in?

Online Check-in is available in Spain, Portugal, Germany, and Italy. Each region uses its own authority, so you must register your accommodation with the correct one before you activate the feature in Holidu. Use the table below to find your authority and the setup guide for your region.

How do I register with my local authority before I set up Online Check-in?

Registration with the responsible authority is mandatory and must be completed before you continue. Open the link for your region in the table above and follow the registration steps there. Once you are registered, the authority gives you a username, a password, and in some cases a renter or accommodation code. You will enter these details in your Holidu account to set up the connection.

How do I connect my property to the authority with Online Check-in?

After you have your authority credentials, follow these steps in your Holidu account.

1. In your Holidu app, open the left side menu, click "Bookings", and select "Online Check-in".
2. You will see your list of properties. Click "Configure" next to the property you want to connect to the police or authority.
3. A screen shows your properties and the connection status for each one. Click the specific property you want to connect.
4. Complete the form with the details of the country where the property is located.
5. Scroll down, click "Activate automatic sending to police", select the correct authority, and enter your username, password, and all other required credentials. Do not use your Holidu login here. Use the login credentials you received from your authority.
6. Click "Validate".
7. When the validation succeeds, click "Save changes" at the end of the form.
8. If no error message appears, your property is connected to the responsible authority.
9. To avoid errors, check the following before you save:
   • Use the correct host fiscal code. This is your ID number, or your NIE if you are not Spanish.
   • Enter your full ID or NIE number, including all zeros.
   • Use the login credentials from your local authority, not your Holidu login.
10. Close the form. The connection status for the property should now show as active.

How does Online Check-in work once it is set up?

Once the connection is set up, the process runs automatically. Guests complete their check-in details online, the data is stored in your Holidu account, and it is sent to the authority at 11:00 PM on the day of check-in. You can follow each booking's progress in the Bookings section.

What is the guest check-in process?

1. After booking, the guest receives an email or message with a link to a secure online check-in form.
2. The guest fills in the details for all travellers and scans their passport or ID. Every person travelling with the guest must complete this step.
3. The data is submitted securely and stored in the system.
4. If a guest does not complete the form, automatic reminders are sent. If the guest still does not comply, you can fill in the data on their behalf (see the manual entry section below).

At 11:00 PM on the day of check-in, the guest data is submitted automatically to the relevant authority.

How do I read the status in the Bookings section of the Holidu app?

Each booking shows a status that tells you where the check-in data stands. The table below explains each status.

Status	What it means
Started, but missing data	The guests have started the process. The status stays incomplete until every person travelling with the guest has finished.
Guest data complete but not yet transferred	All guest data is complete, but the data has not been sent yet because the check-in date is in the future.
Guest data successfully transferred to the authority