These API features enable developers to build better-personalized customer experiences at scale as well as other innovative interactions. To help create more engaging customer service, marketing, and user engagement experiences in Direct Messages we’re providing developers access to endpoints to start conversations with a welcome message, publish messages with quick replies and media, and more.

• Sending and receiving events
  Send and receive Direct Messages.
• Welcome Messages
  Create messages that display for specific scenarios.
• Message Attachments
  Attach videos, images and GIFs.
• Quick Replies
  Prompt users for structured replies with a menu of options.
• Buttons
  Add buttons to link to websites, deep link to apps or other parts of Twitter.
• Conversation management
  Properties to help manage the conversation between multiple applications.
• Custom profiles
  Display a custom profile image and name in a Direct Message.
• Customer feedback cards
  Prompt users for NPS and CSAT feedback.