In Flows, is it possible to create a dependent picklist inside one screen with out using two screens?
So far I know we need to use two screens as of now. Guess it is limitation as of now. You can vote this idea, if that is your problem. https://success.salesforce.com/ideaView?id=08730000000hqtrAAA
We've published an unofficial Flow Screen Component that solves this problem. Learn more about it here: https://medium.com/@alexedelstein/dependentpicklists-a-flow-screen-component-c97dcee1796
Salesforce has also published a Flow Component (Lightning-only) for dependent picklists in Winter '19:
Unfortunately it doesn't support dependent multi-select picklists as of yet..
There is now a standard flow component for dependent picklists as of Winter '19. Check out this video on how to create a dependent picklist. https://youtu.be/FSQ52gVOgcY
Salesforce Documentation https://help.salesforce.com/articleView?id=flow_ref_elements_screencmp_dependentpicklists.htm&type=5 https://developer.salesforce.com/docs/atlas.en-us.salesforce_vpm_guide.meta/salesforce_vpm_guide/vpm_designer_elements_screen_dependentpicklists.htm