Every time i try to send a message with a token, it gives the same "Missing Permissions" error. But it shouldn't, because i am granting all permissions necessary (including of course whatsapp_business_managment and whatsapp_business_messaging) and it still never works. I tried generating all sorts of tokens, from the Graph API, whatsapp account settings in the business settings, i gave all permissions to User System, everything. My script has no trouble recieving messages, but when it comes to sending its always the same.

I also tried sending with just a CURL POST but i couldn't. Can someone help me out here? Maybe is not a problem with tokens but i am making the CURL command wrong. If i can get an example of a good CURL POST to check if the problem is trully the token or settings or only my code, it could be great.

Thanks in advance, i am desperate