I have setup a two way communication between business account and customer using whatsapp business apis. I am having trouble understanding media providers that there documentation talks about for sending text message to customer with image/media.

Heres the link to it: https://developers.facebook.com/docs/whatsapp/api/settings/media-providers/

Who are these providers? are they some specified organisation?

I am currently storing the media files in AWS S3 using some pre-signed url method. Can I use media stored in S3 in whatsapp media message?.

An example would be great help.

What is the best and safest authentication strategy to support Gupshup(WhatsApp) and my own Business API integration? We independently support JWT/Oauth based authentication on our API, but in case of WhatsApp Integration, we will just have a phone number and not a user ID & password.

I know that we can send a text message using HTML anchor tag, with the following code:

<a href="whatsapp://send?text=Hello%20World!">Hello, world!</a>

or <a href="https://web.whatsapp.com/send?text=Hello%20World!">Hello, World!</a>

But, now if I want to send an image attachment, how can I do that?

I was trying to create a AWS stack to deploy Whatsapp Business client API. But Creating stack throws following error. error: The following resource(s) failed to create: [KMSKey, MountTarget2, MountTarget, lambdaStack, dbStack]

I followed this documentation steps. https://developers.facebook.com/docs/whatsapp/on-premises/get-started/installation/aws

I have been trying to send Whatsapp messages using cloud API, but its expecting to enable Whatsapp_business_messaging permission which is by default disabled when associating with any app that has been created.

https://developers.facebook.com/docs/whatsapp/cloud-api/get-started#get-access-token.

I didn't find any documentation pertaining to enable the above mentioned permission. Kindly assist.