My current setup is that I use WordPress as my marketing site and support forms and blogs along with a PaaS. Working great. Now we want to add a new site using wp-multisite. We want this to share all the same functions and amember database. The product offering will vary slightly in pricing (thus the 2 site). We will brand PaaS based on the site they customer came through. Basically we want to test different branding and pricing with a shared backend. Can this be done with amemeber, and if so how?
First you need to use latest aMember version it have wordpress plugin with network support, so you will be able to add users into different sites within network. Also several customizations will be required in aMember in order to display different theme, signup forms depends on the site.