Webhook "story_insights" returns 0 impressions for all stories while the direct request to the API returns the correct value for impressions.
We only caught this today, but it could be happening for more than a day now.

Meta has mentioned in the document that they could add 20 numbers under an Waba account I'm not able to add more than one number now.. Could anyone let me know how should I do that?
Kindly suggest me an idea to add multiple numbers

I get an empty response from the following query:
page_id/insights?metric=follows_and_unfollows&metric_type=total_value&period=day&breakdown=follow_type
Nevertheless, if I query for a period two days prior, I do get results.

In the test version, the messaging_postback function of the webhook is not working. It was functioning perfectly until a few weeks ago. Although I can see that I passed the payload to the button through messaging_echo, I do not receive any response through the webhooks.
Can anyone help with this? What could be causing the error?

I noticed that when I sent a template message to an end user, I got a response as the message was sent, but the user gets a message after 1-2 min. I tried to send 10 messages to a number with high speed Internet and all messages are delayed without any reason. Is anything need to rectified from our side to deliver message without any delay?