# Generated by API Evangelist (build-phrasing.py). Our phrasing, not observed demand.
overlay: 1.0.0
info:
  title: API Evangelist conversational phrasing for Pipelines Alias API
  version: 1.0.0
extends: openapi/customer-io-alias-api-openapi.yml
actions:
- target: $.info
  update:
    x-apievangelist-phrasing:
      method: generated
      generated: '2026-09-26'
      generator: build-phrasing.py
      label: Generated by API Evangelist
      operations: 1
- target: $.paths['/alias'].post
  update:
    x-apievangelist-phrasing:
      intent: Merge a previous identifier into a user
      effect: write
      questions:
      - How do I link an anonymous visitor's old ID to their new user ID for destinations like Mixpanel?
      - When do I need the alias call to reconcile identifiers across systems?
      instructions:
      - text: Alias previous ID {previousId} to user {userId}.
        slots:
          previousId: requestBody.previousId
          userId: requestBody.userId
      - text: Send an alias call so {previousId} is reconciled with {userId} downstream.
        slots:
          previousId: requestBody.previousId
          userId: requestBody.userId
      method: generated
      generated: '2026-09-26'