Diurna — Terms & Conditions

Last updated: February 2026

1. Definitions

"Platform": The Diurna web application and associated services
"Firm": A payroll consultancy or payroll services provider that subscribes to the Platform
"Client": An employer company managed by a Firm on the Platform
"Employee": An individual whose employment data is managed on the Platform
"User": Any person with an account on the Platform (firm administrators, staff members, platform owners, client users)

2. Service Description

Diurna is a multi-tenant SaaS platform for payroll administration. The Platform enables:

Management of client companies and their employees
Attendance tracking (absences, overtime, sick leave, vacation)
On-call work shift scheduling and regulatory communications to the relevant labor authority
AI-assisted data entry via chat interface
Email notifications and alerts
Firm-level configuration and reporting

3. Account Registration and Security

3.1. Accounts are created by invitation only (by platform owners or firm administrators).

3.2. You are responsible for maintaining the confidentiality of your login credentials. You must notify us immediately in case of unauthorized access.

3.3. You must provide accurate and complete information during account setup and keep it up to date.

3.4. We reserve the right to suspend or terminate accounts that violate these terms.

4. Acceptable Use

You agree NOT to:

Use the Platform for unlawful purposes
Attempt to access data belonging to other firms, clients, or employees not assigned to you
Circumvent security measures, RLS policies, or access controls
Upload malicious code, viruses, or harmful content
Use the Platform to store data unrelated to HR/payroll administration
Share your login credentials with unauthorized persons
Scrape, reverse engineer, or attempt to extract the Platform's source code

5. Data Responsibility

5.1. Firms are responsible for the accuracy and legality of client and employee data entered into the Platform. The Firm acts as the data controller for its clients' employee data.

5.2. Staff members must ensure that attendance records, on-call shifts, and other entries are accurate and timely. Inaccurate regulatory communications to the relevant labor authority may result in penalties under applicable labor law — the Platform operator is not liable for such penalties.

5.3. Regulatory Communications: By transmitting on-call shift notifications to the relevant labor authority, you confirm that the information is accurate and that you are authorized to make such communications on behalf of the client company.

6. AI Chat Assistant

6.1. The AI assistant is provided as a convenience tool for data entry. AI-generated suggestions may contain errors.

6.2. You are responsible for reviewing and confirming all data before submission. The Platform operator is not liable for errors caused by AI-generated content.

6.3. Chat conversations are processed by Mistral AI. Do not enter sensitive personal data beyond what is necessary for attendance and scheduling operations.

7. Email Communications

7.1. The Platform sends transactional emails for invitations, notifications, alerts, and regulatory communications.

7.2. You can configure email preferences in your settings. Some mandatory emails (payroll deadline reminders, legal notifications) cannot be disabled.

7.3. Emails to the relevant labor authority are sent to the configured certified email address. Delivery is best-effort — we do not guarantee email delivery by third-party mail servers.

8. Service Availability

8.1. We aim for high availability but do not guarantee uninterrupted service. Scheduled maintenance will be communicated in advance when possible.

8.2. We are not liable for service interruptions caused by third-party providers (Supabase, Brevo, Mistral AI), internet connectivity issues, or force majeure events.

9. Intellectual Property

9.1. Diurna, including its design, code, logos, and content, is the property of TesserLab.

9.2. You retain ownership of all data you enter into the Platform. We claim no rights to your business data.

10. Liability

10.1. The Platform is provided "as is." To the maximum extent permitted by law, we disclaim all warranties, express or implied.

10.2. Our total liability for any claim arising from the use of the Platform shall not exceed the fees paid by you in the 12 months preceding the claim.

10.3. We are not liable for:

Penalties arising from inaccurate regulatory communications to the relevant labor authority
Data incorrectly entered by users
Actions taken based on AI assistant suggestions
Loss of data in browser localStorage (chat history)

11. Subscription and Billing

11.1. Pricing is based on active employee count per month, with tiered volume-based rates.

11.2. Monthly billing is calculated on active employee count at month-end (Europe/Rome timezone).

11.3. Non-payment may result in the account status being changed to "Overdue" and potential suspension.

12. Termination

12.1. Either party may terminate the service with 30 days' written notice.

12.2. Upon termination, your data will be retained for the legally required period and then securely deleted.

12.3. We may immediately terminate or suspend accounts that violate these terms.

13. Governing Law

These terms are governed by Dutch law. Any disputes shall be subject to the exclusive jurisdiction of the Court of Amsterdam.

14. Changes to These Terms

We may update these terms from time to time. Material changes will be communicated through the Platform. Continued use after notification constitutes acceptance.