Digital Messaging API 429 Rate Limit on Multi-Org Premium App Integration

Need some troubleshooting help with a recurring 429 Too Many Requests error when sending messages via the Digital Messaging API in our multi-org AppFoundry integration. The rate limit hits unexpectedly during peak load despite using standard OAuth tokens.

Environment details:

  • Genesys Cloud Platform API v2
  • Premium AppFoundry integration
  • Multi-organization setup with separate OAuth scopes
  • Node.js SDK v4.5.0

The issue occurs specifically when parallelizing message sends across orgs. Any insights on best practices for handling rate limits at scale?