Integrate ProveSource with your WHMCS hosted website easily with the instructions below.
Go to the folder where you installed WHMCS (usually in public_html)
Open the folder "templates"
In the "templates" folder open subfolder "portal"
Find the file “footer.tpl” and open it
From the left side of your cPanel click on “Edit File” or “Edit File with Code Editor” option.
At the bottom of the page right ABOVE the </body> tag add your ProveSource code snippet (must be between the {literal} tags):
{literal}
<!-- Start of Async ProveSource Code --><script>
</script><!-- End of Async ProveSource Code -->
{/literal}