401 Error in TeleSign Implementation

I am working on implementing TeleSign in Auth0 for phone messages. We have a Enterprise TeleSign account.

I implemented using Actions and Hooks, but getting 401
“message”: “Request failed with status code 401”,
“stack”: “Error: Request failed with status code 401\n at createError (/data/_verquire/_node12/axios/0.24.0/node_modules/axios/lib/core/createError.js:16:15)\n at settle (/data/_verquire/_node12/axios/0.24.0/node_modules/axios/lib/core/settle.js:17:12)\n at IncomingMessage.handleStreamEnd (/data/_verquire/_node12/axios/0.24.0/node_modules/axios/lib/adapters/http.js:293:11)\n at IncomingMessage.emit (events.js:326:22)\n at IncomingMessage.EventEmitter.emit (domain.js:506:15)\n at endReadableNT (_stream_readable.js:1241:12)\n at processTicksAndRejections (internal/process/task_queues.js:84:21)”,

Help appreciated. Please let me know if any questions.