Start a Flow from Zapier

I have a bunch of things running in my Wordpress web app and its very hard to call PowerApp from there. I can however easily get my data into Zapier.

How can I get Zapier to call into a Power App Flow?

 

 

I have been reading:

Use a webhook as a trigger for Azure Logic Apps and Power Automate | Microsoft Docs

What are webhooks? (zapier.com)

Create and use Custom APIs (Microsoft Dataverse) - Power Apps | Microsoft Docs

 

And I just can't figure out where to start?

 

Background: I have Woocommerse which has native Zapier integration and NO Power Apps integration. There are a great many things that Zapier supports that Flow does not, but also the reverse. So I would like to be able to pass data from a Zap to a Flow so that I can leverage both worlds.