Online Check-in (Advanced check-in) lets you send your guests' identity details to the local authority automatically, so you can meet your legal registration duties without entering data by hand. This guide explains how to register with the authority in your country, connect your property in the Holidu app, understand the check-in statuses, download your guestbook, fill in guest data manually, and resend data when a submission fails.

What do I need before I can use Online Check-in?

Before you activate the feature in Holidu, you must register your accommodation with the responsible local authority. Registration is mandatory and is handled outside Holidu. Once you are registered, the authority gives you login credentials, and in some countries a renter or accommodation code. You enter these in your Holidu account to connect the two systems.

Registration links by country and region

Choose your country or region in the table below to find the authority and the step-by-step connection guide.

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

To connect a property, open Online Check-in from the Tools menu in the Holidu app, select the property, and enter the authority credentials you received after registration. Click Validate, then Save changes. If no error message appears, the property is connected to the responsible authority.

1. In the Holidu app, open the left side menu, click "Tools", 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 of 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 required credentials. Do not use your Holidu login here. Use the login credentials from your authority.
   
6. Click "Validate".
7. After successful validation, click "Save changes" at the end of the form.
8. If no error message appears, your property is connected to the responsible authority.
9. Close the form and confirm that the connection is active.

How do I avoid connection errors?

Most connection errors come from mistyped identity details or from using the wrong login. Check the following before you click Validate:

• Use the correct host fiscal code. This is your ID number or, if you are not Spanish, your NIE.
• Enter your full ID or NIE number, including all zeros.
• Use the login credentials from your local authority, not your Holidu login.

How does Online Check-in work after setup?

After setup, Online Check-in runs automatically for each booking. The guest completes a secure form, the data is stored in the system, and at 11:00 PM on the day of check-in the guest data is sent to the relevant authority. You can follow each booking's progress in the Bookings section of the Holidu app.

What is the process for the guest?

1. After booking, the guest receives an email or message with a link to a secure online check-in form.
   
2. The guest enters details for every traveller and scans a passport or ID document. Each person travelling with the guest must complete this step.
3. The guest submits the form. The data is stored securely in the system.
4. If the 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.

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

How do I read the status in the Bookings section?

Each booking in the Bookings section of the Holidu app shows a status for the check-in data. The four statuses are listed below.

Status	Image
Started, but missing data
Guest data complete but not yet transferred (check-in date is in the future)