In this video, I go over the steps that need to be taken so that a Salesforce flow can be exposed to Guest Users using a Visualforce and a Sites page. This allows external users to run a Salesforce flow that reads and/or creates Salesforce records. I also share on this video the Secure Guest User change considerations that are coming with Summer 20.
Salesforce Flow External Sharing using a Guest User with Visualforce Pages (Video) in Summer 20
Hi, how do you manage the number of licenses? thanks
Guest user access does not require additional licenses.