Hi!
Is it possible to integrate custom widgets into ArcGIS Online? If it's true, can anyone let me know the deployment steps ??? Thanks!! Diana
You cannot deploy third party custom widgets on ArcGIS Online due to security concerns. You can deploy them on Portal or through the Web AppBuilder Developer Edition only.
Hi Diana,
Just to elaborate on Ken's comment, please review the discussion in this similar topic thread,
https://community.esri.com/message/729156-publishing-custom-widget-in-arcgis-online
Hope this helps,