Auth0 to salesforce Integration Via APIGEE

I am looking for a solution / suggestion for a scenario where a user created or changed any details (email or phone) should be updated to salesforce with a APIGEE as an integration layer. There is a post user registration flow in auth0 whose description says it will : * Send a new user notification

  • Create a record in a CRM system. My questions are:
  1. Does auth0 has any flow for update a record in CRM for an existing customer?
  2. If APIGEE is down for sometime, then how will the post user registration flow retry sending the notification?
  3. What is the best way to maintain the code snippet in auth0 (flows and triggers)
  4. is there any feature other than flows and triggers which can be used for this use case.

Thanks!

Anyone with a suggestion?