Get project iMessage platform
Reports whether the project is on shared or dedicated iMessage lines, derived from its billing entitlements. Shared mode carries the seat cap. Both say whether a dedicated line requested now would be assigned without waiting. Requires the platforms:read permission bound to the project resource in the path.
Authorizations
Account Service Key, prefixed with pho_ask_, sent as Authorization: Bearer <key>. Acts on behalf of its owning account, subject to the permissions and credential restrictions of each operation. Account access tokens and OAuth grants also use the Bearer header. In organizations that require SSO, Account Service Keys are not accepted for managing the organization's SSO settings, deleting the organization, or checking whether it can be deleted.