How to use custom flow in action framework ??

Can you elaborate on what you’re wanting to do? We have branch logic in the action framework if that’s what you’re referring to.

Our tutorials on action frameworks can be found here:

I want to learn the action framework in that  how custom flow is works,how to use that,what is the flow action type i have to use??

Workflows are set up via Salesforce on the backend. You can learn about them via Trailhead on Salesforce.