| Provider | Purpose | Data and location |
| Hetzner Online GmbH | Application and database hosting; encrypted offsite backups (Storage Box) | All service data; Germany (EU). Backups encrypted with rclone crypt; secrets and session material additionally encrypted to an offline key |
| Cloudflare, Inc. | DNS; third backup copy (R2 object storage) | DNS proxy is off (no traffic inspection). Backups in R2 EU jurisdiction, encrypted with rclone crypt |
| Functional Software, Inc. (Sentry) | Error and stability monitoring | Error events only; e-mail addresses, phone numbers, request bodies and secrets are masked before transmission. Performance tracing is disabled |
| Resend, Inc. | Transactional e-mail (verification codes, password reset, billing and service notices) | Recipient address, subject and message body of the notice |
| Provider | Purpose | Data and location |
| Zernio (Meta Business Solution Provider) — optional | Official WhatsApp Business Platform, Instagram and Messenger connections; Meta Lead Ads and Conversions API | Message content, contact identifiers, lead form and conversion event data; only for the channels the customer connects |
| Meta Platforms (WhatsApp, Instagram, Messenger) | Message delivery | Subject to Meta's own terms; connected by the customer |
| Telegram FZ-LLC — optional | Telegram channel connection | Message content and the customer's Telegram session; only when the Telegram channel is connected |
| Zoho Corporation · Bitrix Inc. · HubSpot, Inc. · HighLevel Inc. (GoHighLevel) | CRM integration selected by the customer | Contact, lead and deal records and message synchronisation; each under its own terms |
When we intend to add or replace a sub-processor that will process customer data, we update this page and notify customers through the panel or by e-mail a reasonable time in advance. Customers may object on legitimate data-protection grounds as described in the DPA. Questions: support@flexinbox.io.