Login to your PrestaShop Admin Panel. Go to the “Modules and Services” section.
Select the location of the module file, and upload it.
Search for “onWebChat" module
The “onWebChat” should appear in the results, click “Install” button
Paste your Chat Id and click “Save”.
If you don't have an onWebChat Chat Id, please create an account here.
Congratulations! Your live chat widget is now available on your website.