Can we have Manage state data in SDK V4 using Nodejs? I currently have used in SDK V3 using the link below https://learn.microsoft.com/en-us/azure/bot-service/nodejs/bot-builder-nodejs-state?view=azure-bot-service-3.0
All the information in the v3 docs can also be found in the v4 docs. The docs are just structured differently.
Check out this section which provides an overview on "Managing State". There is also this which discusses how to "Save user and conversation data" as well as this that goes over "Writing directly to storage".
Hope of help!