Hi, I want to know that Can I use single activation on unlimited subdomains of a single site? I have a hosting site and I offer auto installation of wordpress and plugins for the users who purchase package with my site subdomain like (dazy.devbash.com). Now I want to know that If i buy a single license for domain(devbash.com) will it work for all the subdomains of devbash.com? It should work because all the subdomains belongs to the same site. Please help me.
You will need to activate WP ERP every time for each subdomain of your site.
So, a single license for WP ERP add-ons will not work for all the subdomains of your site.
You can use one ERP installation on 1 database. That means one WordPress installation can have only one ERP activation. You can definitely install and activate the plugin on a single subsite of a network installation. But WP ERP cannot be used across multiple subsites of a network installation.