Action Server with Twillio Integration

I integrated my bot with Twillo’s programmable SMS successfully but custom actions keep failing. (It works without Twillo Integration; when the core_sdk starts the action server)

I’m confused about the role of my action server and what its endpoint should be when integrating with Twilio.

SMS–>Twilo–> Ngrok–> Core (–> Action → Core ) → Ngrok -->Twillo–>Phone

endpoints.yml;

action_endpoint:
  url: http://localhost:5055/webhooks/twillo/webhook

core_endpoint:
  url: http://localhost:5005

credentials.yml

twillio:
  account_sid: "xxxxxxxxxxx"
  auth_token: "xxxxxxxxxxx"
  twilio_number: "+xxxxxx"

from makefile;

run-core-twillo:
	python -m rasa_core.run -d models/dialogue -u models/current/nlu --endpoints endpoints.yml  --connector "twilio" --port 5002 --credentials credentials.yml --enable_api
run-actions:
	python -m rasa_core_sdk.endpoint --actions actions_custom

Would be very grateful for any help, thanks again

resolved, action endpoint should be

action_endpoint:
  url: http://localhost:5055/webhook