Is it possible to move a web app from one ArcGIS Online organization to another ?

Answer

In some cases, users may want to move web apps directly from one ArcGIS Online organization account to another when the organization acquires a new account or when the members move to a different ArcGIS Online organization account. However, it is not possible to move content from one ArcGIS Online organization account to another. Refer to ArcGIS Online Help: Can I transfer my data directly from one organization to another for more information.

As a workaround, follow the instructions described below:

1. In ArcGIS Online, download the web app from the old organization. Refer to ArcGIS Online Help: Download apps for more information.
2. Export the file geodatabase or the feature classes used in the web app as a shapefile. Refer to ArcGIS Online Help: Export data from hosted feature layers for more information.

3. Republish the service using the shapefile in step 2 to the new ArcGIS Online organization account from ArcMap or ArcGIS Pro. Refer to ArcMap Help: Publish a map service from ArcMap and ArcGIS Pro Help: Publish a map service for more information.
4. In the new ArcGIS Online organization account, add the published hosted feature layers to a new map with the desired basemap and save the web map.
5. Open the web app downloaded from the old organization in step 1, and open the config.json file in a text editor such as Notepad.

6. In the config.json file, update the portal URL and web map ID to the new organization portal URL and web map ID.

7. Publish and host the web app on the web server to access the app from the new organization account. Refer to Web AppBuilder for ArcGIS: Deploy the app for more information.