Restaurant Customer Data Privacy in Austria: A Practical GDPR Guide

Restaurants may record names, telephone numbers, delivery addresses, order history and guest notes for reservations, orders, delivery and customer communication. These data should be managed for defined purposes, with limited access and justifiable retention.

Create a data map and define purposes

Name, telephone number, delivery address, order history, language preference, reservation notes and marketing consent do not serve the same purpose. For each category identify purpose, processing basis, storage location, recipients, review period and internal owner.

Collect only what is necessary

Reservation and ordering forms should be limited to data required to provide the service. Unnecessary questions, unrelated notes and indefinite retention increase risk.

Provide clear information

Privacy information should be available before or at collection and explain the controller, purposes, recipients, retention period or criteria, and how rights can be exercised.

Separate reservations from marketing

A telephone number provided for reservation confirmation is not automatically marketing permission. Service communication, consent or another marketing basis, collection date and withdrawal should be stored separately.

Restaurant and software-provider roles

The restaurant often determines why and how customer data are used and acts as controller. Reservation, email, payment and software providers may be processors or hold different roles in particular flows. Processing contracts, subprocessors, security and return or deletion procedures should be reviewed.

Role-based access and event logs

Reception may need name, time and party size, while managers may need an associated complaint record. Not every employee needs full contact details and purchase history. Personal accounts, restricted access and event logging help control misuse.

Allergy notes and sensitive data

Allergy or health notes may be more sensitive. Record only what is necessary for the service, restrict access and retention, and keep food-safety procedures separate from marketing profiles.

Retention and deletion matrix

Completed reservations, financial documents, delivery addresses, customer accounts, complaints and marketing consent do not necessarily have the same retention period. Define review, deletion or anonymisation for each purpose. Austrian legal and accounting obligations require local specialist confirmation.

Customer requests

Establish an internal process for receiving requests, verifying identity, finding data across connected systems, considering exceptions and recording the response. Rights may include information, access, rectification, erasure, restriction, portability and objection. Austrian official guidance normally requires eligible requests to be handled within one month, with extension only in the circumstances allowed by law.

Exports and deletion across systems

Customer data may exist in reservations, POS, online ordering, email and exported files. Requests and deletion workflows should cover relevant systems and processors. Deleting from the main interface alone does not prove complete deletion; backups and legal retention need a clear policy.

Security incidents and personal-data breaches

A lost tablet, misdirected file, former employee access or cyberattack should be recorded, contained and assessed promptly. Where applicable, the controller should examine notification to the authority and affected people. Austrian official guidance refers to notification without undue delay and, where feasible, within 72 hours for reportable breaches.

Privacy by design and default

Use the fewest necessary fields, limited display, default retention periods, automatic device locking and access by branch or role. Full exports and indefinite storage should not be defaults.

Operational checklist

1. List data, purposes and systems.
2. Identify controller and provider roles.
3. Review notices and consent forms.
4. Check access levels and active accounts.
5. Approve retention and deletion rules.
6. Practise customer-request and breach procedures.

Conclusion

Restaurant privacy is implemented through less collection, clear purposes, restricted access and regular review.

Frequently asked questions

Is all customer information necessary for a reservation?

No. Collect only data proportionate and necessary for the reservation or service.

Can a reservation telephone number be used for newsletters?

Not automatically; service and marketing purposes and their legal bases must be assessed separately.

When should a customer request normally be answered?

According to Austrian official guidance, normally within one month; extensions are allowed only under the prescribed conditions.

What should happen after a personal-data breach?

Contain and assess it, and for reportable cases consider notification without undue delay and where feasible within 72 hours.