Zoom SMS receive Event Not working

Hi, I am new to Zoom, i want to trigger Zoom webhook whenever i receive a message on my zoom phone, i am validating my URL by adding one event (Zoom SMS received event).

On validate URL, i can get req body but not able to get any payload whenever my phone receive a message.

I am creating webhook-only app, Your help matters a lot.

Hi @amna.ali
Thanks for reaching out to us and welcome to our Developer Community, I am happy to help here!
Could you please confirm that you have a Zoom license? if so, can you confirm that The recipient is a user on your account or a user of your webhook-enabled app.

I would also suggest to try running this sample app with the events you are subscribed to and test again