Adds a brand identifier, or updates an existing one by passing its identifierID. Monitoring starts as soon as the first identifier is added - there is no separate activation step. Requires an Enterprise subscription.

A domain must already be one of your verified domains: verify it under Employees first, otherwise this returns 400 with ErrorCode DOMAIN_NOT_VERIFIED.

A keyword is checked by an automated reviewer when it is first added and whenever its value changes (toggling active or editing label does not re-run the review, so an approved keyword keeps its approval). Three outcomes:

• accepted - saved with approvalStatus approved and monitored immediately;
• rejected - NOTHING is saved and the call returns 409 with ErrorCode KEYWORD_NEEDS_CONFIRMATION and the reviewer's reason in Error. Relay that reason to a person and let them decide; do not blindly retry. To keep the keyword anyway, resend the same request with acceptWarning: true - it is then saved as pending_review and queued for manual review;
• the reviewer was unavailable - the keyword is saved as pending_review and queued.

A pending_review identifier is stored but has isMonitoring false: it produces no findings until a person approves it.