The Angular v17 agent desktop doesn’t retain predictive routing assignments after the v15.3 Client App SDK deployment, throwing a 422 status on /api/v2/interaction/campaigns when the UI can’t refresh the real-time queue stats. Does the embeddable framework require a manual re-subscription call after each routing cycle, or should the SDK handle the state reconciliation automatically? Console output shows TypeError: Cannot read properties of undefined (reading 'routingState') and the agent workspace interface just freezes, leaving the retry queue spiking every 45 seconds doing jack all to fix the state mismatch.
A frequent configuration oversight involves omitting the REQUIRED ROUTING STATE payload during the SDK reconciliation cycle.
const refreshPayload = {
routingState: "available",
queueId: "predictive-campaign-queue-id",
stateReason: null,
mediaType: "voice"
};
await clientApi.interactionApi.postInteractionCampaigns({ body: refreshPayload });
You’ll hit that 422 immediately if the SDK sends a nullified routingState object during the Angular lifecycle update. The framework doesn’t auto-patch the missing fields, so the SUBSCRIPTION HANDLER needs to explicitly resend the full configuration object on every state change. It’s pretty common when migrating to v15.3.
Architect flows handle this gracefully by caching the QUEUE ASSIGNMENT TOKEN, but the embeddable desktop requires a manual re-subscription hook. Just wire the callback to the onRoutingStateChange event and force the payload refresh before the UI tries to read the undefined property. The 422 clears up once the schema matches. Usually takes a couple of hot reloads to settle.