
SIBA WebService Troubleshooting Guide for Alojamento Local Hosts
If you manage an Alojamento Local (AL) in Portugal and are trying to automate guest reporting to SIBA, connection and activation issues can sometimes happen during setup.
This guide explains the most common SIBA WebService problems, how to validate your credentials, and what to check before enabling automation.
What Is the SIBA WebService?
The SIBA (Sistema de Informação de Boletins de Alojamento) WebService allows accommodation providers to automate the submission of foreign guest information to the Portuguese authorities.
Instead of manually entering guest details into the SIBA portal, compatible software can submit the accommodation bulletin automatically.
This helps hosts:
Save time
Reduce manual errors
Avoid missed submissions
Keep guest reporting organised
Before You Start
You should have:
Full property address
Phone number
Guest capacity (max guests)
Number of bedrooms
Property type (Apartment / House / Room)
Your NIF number
Municipality where the property is registered
This can all be found by searching on RNAL. All Alojamento Locals in Portugal are listed there.
Remember:
All foreign guests — including EU citizens — must be communicated to SIBA within the legal deadline.
Common SIBA WebService Problems
1. Invalid Activation Key
Symptoms
“Invalid key”
Authentication failed
Unable to activate automation
Possible Causes
Incorrect copy/paste
Extra spaces
Wrong establishment number
Old or deactivated key
How to Fix It
Copy the key directly from SIBA
Remove spaces before or after the key
Confirm the establishment number is correct
Try logging into SIBA manually first
If manual login also fails, the issue is usually on the SIBA side rather than your software.
2. SIBA Portal Login Works but Automation Fails
Possible Causes
WebService not enabled
Incorrect credentials linked
Temporary SIBA server issue
Recommended Checks
Confirm the property NIF matches the SIBA account
Verify the establishment identifier
Wait a few minutes and retry
Test with a new guest submission
Sometimes the SIBA servers experience temporary slowdowns or maintenance periods.
3. Guests Are Not Appearing in SIBA
Possible Causes
Guest form incomplete
Missing nationality/passport data
Submission date mismatch
Internet timeout during submission
What to Check
Ensure all mandatory guest fields are completed
Confirm arrival and departure dates
Check that the nationality is not empty
Verify the guest submission appears in your software dashboard
Many failed submissions are caused by incomplete guest check-in forms.
4. Wrong Property Connected
This can happen if:
Multiple properties exist under the same account
The wrong public check-in link was shared
A copied setup from another unit was reused
Solution
Each property should use its own unique guest check-in link and SIBA configuration.
Always verify:
Property name
AL registration
Establishment number
Public guest link
before testing automation.
Quick SIBA Validation Checklist
Before enabling automatic submissions, check the following:
SIBA Setup Checklist
Account & Access
I can log into the SIBA portal manually
My activation key is correct
My establishment number matches SIBA
My property NIF is correct
Guest Data
Guest nationality is filled in
Arrival and departure dates are correct
Passport or ID details are completed
Guest count matches the reservation
Automation
I tested one guest submission first
I received a confirmation email from SIBA
The submission appears inside the SIBA portal
The correct property is connected
Best Practice for AL Hosts
The easiest way to reduce SIBA errors is to collect guest information before arrival using a dedicated digital check-in form.
This helps:
Reduce manual entry
Improve guest compliance
Organise records
Automate submissions
Reduce late reporting risk
Many hosts now include the guest check-in link directly in Airbnb Scheduled Messages or Booking.com messaging automation.
Final Tip
If your SIBA connection suddenly stops working after previously working correctly, first test:
One new guest submission
Confirmation email delivery
In many cases, the issue is temporary and resolves without needing a full reconfiguration.
Automate Your SIBA Submissions with EazyAL
EazyAL helps Portuguese AL hosts:
Collect guest details digitally
Organise check-ins
Automate SIBA submissions
Track tourist tax obligations
Simplify compliance workflows
Start with a free guest check-in link and upgrade to automatic SIBA submissions when ready.
