Click item to view your template > Groups (in the top header of the ArcGIS Online page) and choose Create a Group.If you have configured ArcGIS Online to share custom templates click here to see the details of the exported template and proceed to step 7.If you have not configured ArcGIS Online to share custom templates you will see the following message below.Give the template a name, tags, description and save it in your folder of choice and click OK and Close.In the Theme tab click the ^ to the right of the Saved button > Export As Template and select the individual options you want to make configurable for webmap authors later and then click Export > Export to My Organization. On the Web AppBuilder homepage click Configure App for the application you would like to export as template. Ensure that ArcGIS Online is using content from this group when displaying templates.Register your local application as an ArcGIS Online Item.Now that you have a customized Web AppBuilder application running on your own web server, we can make it available for other webmap authors in our Organization to take advantage of as well. Geodev-hackerlabs Deploy your Web AppBuilder project to ArcGIS Online

Online web app builder