Expected Behavior The message must be sent with success response in the API.

Actual Behavior The error "Generic User Error" is returned.

Troubleshooting Steps - Payment Fulfilled: We make sure no payment Facebook charge us still unpaid. The fact, we have paid all of them automatically. - We make sure our SDK is the latest (v20): Still getting error. - We test with "Test Number" that come from the API setup: Still no avail. - New number: it doesn't work, it is on WA account level error.

Notes The API suddenly doesn't working on Sep 15th. This affects all our WhatsApp setup that we use, on both third party apps and our code.