Steps I took to reach the verification screen:
-> Whatsapp -> API setup -> Verify phone number.
Other messages are coming on my virtual number.

Hello! I am working on an integration for leads with the ads I run on facebook and my CRM. For this I followed the steps on setting up an endpoint and configuring the webhooks product on the meta developer pages.
I managed to get a leadgen from the webhooks testing tool using the specific leadgen testing tool from the app's dashboard. I also checked and verified that my page-access token has the required rights to access and retrieve leads.
I however run into a problem trying to simulate the full lead ads testing tool (https://developers.facebook.com/tools/lead-ads-testing/) for simulating the entire process of making a lead and retrieving its data. My problem is that when I create a lead, the status of the test-lead stays on 'pending', and the Error Message displays 'Updated lead is still being processed and will be delivered shortly'. It seems as if the request is stuck.
I also verified that my app is indeed subscribed to the leadgen field using https://developers.facebook.com/docs/marketing-api/guides/lead-ads/quickstart/webhooks-integration/
I am using ngrok for tunneling the requests to my local environment, but that should not matter since I do receive the leadgen tests from the leadgen-specific testing tool.
Does anyone have any fix or idea what could be wrong?

Is anyone else having issues with Facebook not connecting all Facebook Pages?

In whatsapp cloud api Dashboard, under test number I get a message like this "Messaging may be unavailable. Review issue". , but it is still sending messages when i click the send message button, but my web hook has stopped working, it was working earlier

I am trying to implement whatsapp embedded signup flow for integrating whatsapp . Followed the documentation : https://developers.facebook.com/docs/whatsapp/embedded-signup/embed-the-flow/
embedded a simple button as login in to facebook

and the javascript for that is as follows
window.fbAsyncInit = function () {
// JavaScript SDK configuration and setup
console.log(facebookMetaData.metaAPPID)
FB.init({
appId: facebookMetaData.metaAPPID, // Meta App ID
cookie: true, // enable cookies
xfbml: true, // parse social plugins on this page
version: 'v19.0' //Graph API version
});
};

// Load the JavaScript SDK asynchronously
(function (d, s, id) {
var js, fjs = d.getElementsByTagName(s)[0];
if (d.getElementById(id)) return;
js = d.createElement(s); js.id = id;
js.src = "https://connect.facebook.net/en_US/sdk.js";
fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));

// Facebook Login with JavaScript SDK
function launchWhatsAppSignup() {
// Conversion tracking code
fbq && fbq('trackCustom', 'WhatsAppOnboardingStart', {appId: facebookMetaData.metaAPPID, feature: 'whatsapp_embedded_signup'});

// Launch Facebook login
FB.login(function (response) {
if (response.authResponse) {
const code = response.authResponse.code;
// The returned code must be transmitted to your backend,
// which will perform a server-to-server call from there to our servers for an access token
} else {
console.log('User cancelled login or did not fully authorize.');
}
}, {
config_id: facebookMetaData.configurationID, // configuration ID goes here
response_type: 'code', // must be set to 'code' for System User access token
override_default_response_type: true, // when true, any response types passed in the "response_type" will take precedence over the default types
// extras: {
// setup: {
// ... // Prefilled data can go here
// }
// }
});
}
}
For the above javascript variable like facebookMetaData.metaAPPID are replaced properly.
when clicking the button i am getting the error in console as
Uncaught ReferenceError: fbq is not defined
launchWhatsAppSignup
How to resolve the issue so that whatsapp embedded signup can be implemented?