403 Forbidden on /api/v2/users/me during load test

Can’t get this config to load properly… getting 403 Forbidden on /api/v2/users/me when JMeter hits 500 concurrent threads. Using bearer token auth, works fine at low concurrency.

Environment is Genesys Cloud EU1, JMeter 5.6.2. Token is valid, checked via Postman. Seems like a rate limit or concurrent session cap kicking in for API calls, not just WebSocket. Any ideas?

You need to implement exponential backoff with jitter for 429 responses, not 403s. The EU1 region enforces stricter concurrency limits. Check your OAuth scopes for multi-org validation timeouts. Platform API Rate Limits