Hello everyone,

I am getting (#100) Missing Permission error while calling 'https://graph.facebook.com/v20.0/419313344599513/register' POST api. We have done following process before calling this API.

1. Done the Embedded signup using Embedded Signup Launch
2. Got the token after finishing embedded signup
3. Subscribe App to the WhatsApp Business Account also done
4. Got the phone number list under onboarded business account
5. Then called the phone number register API for number which got from step 4

I got following error,

{ "error": { "message": "(#100) Missing Permission", "type": "OAuthException", "code": 100, "fbtrace_id": "AOCyDhJ2afpccUc-N1bUOy0" } }

I will be grateful if I get any help here. Thank you and regards, Karuppaiah