Starting point

Upload the files to your lhc_web/extension/googlebusinessmessage folder
if your folder contain lower and Upper cases, rename it to lowercase googlebusinessmessage

Go to https://business-communications.cloud.google.com/console/
Click Create Partner Account on the Business Messages
Then Fill the necessery details and Click Create
Click Patrner account settings on top right corner (Gear Icon)
Click Service account
Create key and download json file.
Copy extension/googlebusinessmessage/settings/google_service.json.default.php to extension/googlebusinessmessage/settings/google_service.json.php
Modify file and put json file content in dedicated place in settings/google_service.json.php file.

Truncated sample file

Execute extension/googlebusinessmessage/doc/install.sql or just execute from command line

php cron.php -s site_admin -e googlebusinessmessage -c cron/update_structure

Install dependencies using composer

cd extension/googlebusinessmessage && composer install

Activate extension in main settings file lhc_web/settings/settings.ini.php extension section googlebusinessmessage by Adding lines:

'extensions' =>  array (  ,'googlebusinessmessage'  ),

If you don't see this in Module, check your lhc_web/settings/settings.ini.php and also click Clean Cache from back office

Click Modules then click Google Business
Then Click Install/Update (Colour will change from Red to Green )
Then Click Agents and fill the requred field
- Brand ID and Agent ID can be found in your Google Business Communications page
- Put random string on Client Token
- copy Callback URL for Google Business Message value to your clipboard and click save
Go to your Google Business Communications page and click on Intergration
Then Enable Webhook
Put your Webhook EndPoint URL and Client Token
Click Verify

Hierarchy