The guest data fields to be affected by the anonymization (such as address, telephone number, Email, etc.) are configured under the heading Anonymize guest [14850].
The program Anonymize guest also checks when was the last time the guest stayed at the hotel and if there are any reservations in the future, depending on registry keys [500270] and [500271].
User registry keys [500274] and [500274] to avoid that guests with or without a matchcode are anonymized.
Figure 6: Registry-settings to configure the guest data anonymization