In the sharepoint farm, one of our web application is changing authentication for existing users. Users were using Windows authentication but now same user would be using forms based authentication to log in to the site.
Scenario:
User John logs in to Sharepoint site sharepoint.com using Windows authentication with domain A
Now FBA is configure for domain A and john has to start using sharepoint using FBA.
With my testing i have found that John even though present there through windows authentication will not be able to log in with FBA. And i guess that is due to identity provider.
My question is , is there any way to effectively manage permission without having users deleted and added again using manual process. Is there a powershell script or any method to switch existing users authenitaction from windows to FBA.
sachin