WordPress Woocommerce ERP

it’s my first time here so please be patient with me.

I am building a site using WordPress. It is my first one and not being a programmer is a huge obstacle for me since I read that knowing CSS or HTML can give you a big boost when creating a site.

I want to have a store in my site, so I used Woocommerce plugin about that.

My problem is that I want an ERP system in my site, a small scale one, but I can’t find a plugin that does that.

Is there a way to do that without plugins, since I didn’t find any, or did I not look good enough?

Thanks in advance!