There are some examples out there. (see links below)
I would recommend only using Wordpress for the public facing website or blog though.
Use Rails or Laravel for the actual SaaS application.
WP is difficult to work with when you start moving beyond CMS features. Also WP has ongoing security issues.
Rails and Laravel are made for building apps, is easier to work with and more secure. Also checkout Laravel Spark, it's a SaaS App in a box and can save you tons of time.
Definitely possible to build it directly in WP, but I wouldn't recommend it.
I would recommend only using Wordpress for the public facing website or blog though.
Use Rails or Laravel for the actual SaaS application.
WP is difficult to work with when you start moving beyond CMS features. Also WP has ongoing security issues.
Rails and Laravel are made for building apps, is easier to work with and more secure. Also checkout Laravel Spark, it's a SaaS App in a box and can save you tons of time.
Definitely possible to build it directly in WP, but I wouldn't recommend it.
https://raison.co/building-saas-startup-wordpress/
https://www.dtelepathy.com/blog/products/wordpress-saas-appl...
https://www.npgroup.net/blog/4-reasons-you-should-reconsider...