Hi,<p>I'm planning on building a drupal-based webapp with customizable monthly billing plans. In short, there will be something like 4 main packages with different amounts of allowed users, storage space, additional features, etc - all costing different amounts. I also intend on including upgrades and downgrades for each plan to offer additional flexibility - which varies the price.<p>Problem is, the two leading ecommerce solutions for drupal are Ubercart, and e-Commerce - both which completely suck (at least for this scenario). Being that the main app will be drupal-based, I intended on hosting subdomain copies of it for each client. If that is the case, I can have my main site running something else. So my question is, what sort of (hopefully open-source) systems are out there that can handle and manage this type of billing system (the type of system that the other half a million companies are using, etc).<p>Thanks
I use Satchmo[1].<p>A few other people seem to as well [see 1]. My main site is GWT, so has the same Main-Site/Subscription Handling divide you seem to favour.<p>Satchmo & Django are nicely architected, so it is as easy to extend/modify as anything could be.<p>See :: Features -> Subscription Based Products[2]<p>--<p>[1] <a href="http://www.satchmoproject.com/" rel="nofollow">http://www.satchmoproject.com/</a><p>[2]<a href="http://www.satchmoproject.com/docs/svn/features.html" rel="nofollow">http://www.satchmoproject.com/docs/svn/features.html</a>