I have created a new App. Try to test it here
https://developers.ringcentral.com/api-reference/High-Volume-SMS/createA2PSMS
But there is no error response
No feedback from development support during a week. Could you please help to understand where is a mistake?
Thanks in advance.
Is your app still in the sandbox? App client id?
Yes it's still there
Clien ID: ut4fLomWQSq_da_3RMn2kw
This is why you got that error.
https://developers.ringcentral.com/guide/messaging/sms/high-volume
Read the "Limitation of High Volume SMS" section.
I manually graduated your app so now you can try on your production. Remember that you have to authenticate (login) your app with the right user credentials. The one that owns the A2P SMS number.
Wow! Thank you. It seems the App has appeared in PROD
But now there is a new error ...
{
}
What is can be?
Did you choose the production environment? Did you login as the user who owns the A2P SMS number?
Can you write your own code or copy paste sample code from the dev guide to send test messages?
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