Create a new Matter

Overview

Create a new Matter for a contact.

Important Context

Creating a client via POST /platform/v1/clients automatically creates a first matter. This endpoint is used to create additional matters for an existing client.

Name Field Requirement

Additional matters require a name field to differentiate them:

1. Call GET /platform/v1/fields to get field definitions
2. Find the field where type == "name" AND object_type == "matter"
3. Use the field's id as the uid with a unique name value

Available for Staff tokens