I have developed a SharePoint 2010 Sandbox solution in Visual Studio 2012 which has been deployed on Office 365 SP2010. The solution contains custom lists, visual web parts and workflow activities.
I now want to deploy it to Office 365 SP2013 but face some problems doing that.
I have tried to deploy the .WSP file to Office 365 SP2013 but deployment failed.
Then I created a new SP2013 project in Visual Studio 2012 and imported all the files from my existing project. I got to the stage where I could deploy the .WSP file successfully to Office 365 SP2013 but a lot of the functionality didn't work. Some of the issues are:
- Web parts throw errors
- If applying my custom master page it's complete screw up the site and throws errors
My question is not specific for the issues listed but more of a general question if anyone have experienced similar issues and what steps they took to solve it. I haven't been able to find any official documents from Microsoft on how to migrate a SP2010 Sandbox solution to SP2013.
Any help is much appreciated.