AlertThis post is over a year old, some of this information may be out of date.
Sandboxed To-Do List Web Part on Office 365 – SharePoint Online
post
Today I received my Office 365 account, so I thought it would be cool to check out if my sandbox web part, that I have created some time ago, is working on SharePoint Online.
When you set the number of resources for your site, you can upload the sandboxed solution to the site. Here is the download link for the solution: To-Do List Web Part Solution File
Go to your SharePoint Online site;
Open the “Site Actions” menu, and click on “Site Settings”;
Under the “Galleries” section, click on “Solutions”;