Event catalog
Didit also emits session, transaction, and business-session events that reference entity fields. See:
- KYB webhooks — business session events
- Transaction Monitoring webhooks — transaction events
- Webhooks reference — signature verification, retries, destinations
Payload shapes
All entity webhooks share a common envelope:user.status.updated / business.status.updated
Fires on every status change. The reason field tells you why the change happened:
user.data.updated / business.data.updated
Fires when profile fields change. The payload includes the full updated entity:
changed_fields to efficiently sync only the fields that changed.
activity.created
Fires whenever an activity record is created about a User or Business entity. Activities form the entity’s timeline — the backend writes one for every material event, across five source categories:
Example payload:
subject_kind—USER,BUSINESS, orEXTERNAL(a counterparty not registered as one of your entities).subject_vendor_data— the entity’svendor_datawhen applicable.source— one of the five categories above.activity_type— machine-readable type tag (e.g.note_added,status_changed,session_completed,rule_triggered).title/description— human-readable summary; safe to render in your timeline UI.session_id,business_session_id,transaction_id— FK identifiers when the activity is tied to a specific session or transaction.
activity.created to mirror the Didit timeline into your own audit / compliance log, trigger follow-up workflows on specific activity types, or power a customer-facing timeline view.
Delivery, retries, and signing
All entity webhooks follow the standard delivery contract:- Signed with HMAC-SHA256 via the
X-Didit-Signatureheader (secret shared key on your destination). - Retried with exponential backoff on non-2xx responses (1s → 2s → 4s → … up to 5 retries over ~24 hours).
- Idempotent — every webhook has a unique
event_idin the payload; de-dupe on your side.
Subscribing
Subscribe to entity events on a webhook destination via the Management API or Business Console:Next steps
Webhooks reference
Destinations, signatures, retries, and verification.
Create destination
Register a new webhook endpoint.
User operations
Changes that trigger user webhooks.