We have a issue with one requirement
1 A Web Application which is not active until 90 days Administrator need to get an notification
2. How to get Last Modified date with Nintex Work Flow on any web application please let we know
appreciated for support on prompt responses
i strongly recommend to NOT use a nintex workflow for that. If you would want to do this with a workflow, you would need to check every single item in your whole web application + evantually all the sites/webs itself for ANY changes in configuration etc.. This is nothing you should/can do with a single sharepoint workflow.
SharePoint offers some standard functionality for finding unused sites. Please have a look at this msdn article and see if it helps you.