Config API

Every legacy endpoint in this category and its replacement in the new Oneserve API (where one exists).

Legacy	Status	Replacement	Notes
user	Replaced	POST /v1/users	Legacy /rest/config/user was an upsert (create-or-update by userRef). The new API splits this into POST /v1/users (create) and PATCH /v1/users/{id} (update); pick the appropriate one based on whether the user already exists.
clientGroup	No replacement	—	Partial coverage in new API (Clients/Teams) but legacy is broader.
clientGroupUpdate	No replacement	—	Partial coverage in new API (Clients/Teams) but legacy is broader.