Manually invoke event triggered Netlify functions

I ask becasue of the following documentation:

identity-signup : Triggered when an Identity user signs up via Netlify Identity. ( Note: this fires for only email+password signups, not for signups via external providers e.g. Google/GitHub )

if the identity-signup function is not triggered when you use external provider, how would one manually invoke it and is it event possible? When i hit my /.netlify/functions/identity-signup directly in the browser i get a 403 error.

It’s not possible to invoke an event-triggered function. I think you can try deploying another function that does the same thing but named something else for when you want to manually invoke the function.

I ended up doing this. so thanks for verifying this is the correct approach.