Common issues with Chat Trigger in Duaer

Pass data from a web page to an embedded Chat Trigger

When you embed the chat window, put any data in the metadata of createChat, such as a user ID from a site cookie. It appears in the Chat Trigger output with the other fields, ready for later nodes.

createChat({
  webhookUrl: '<Production URL>',
  metadata: { userId: '42' },
});

Previous messages do not load

This often shows as workflow could not be started!. Load Previous Session reads history by sessionId. With From Memory, connect the same memory node to both Chat Trigger and AI Agent:

1. Turn on Make Chat Publicly Available, then set Load Previous Session to From Memory under Chat Trigger Options.
2. Connect a Simple Memory node to the Chat Trigger Memory input.
3. Connect the same Simple Memory node to the AI Agent Memory input.
4. In Simple Memory, set Session ID to Connected Chat Trigger Node.

If Session ID uses an expression, it must give the same value on both nodes. If it cannot, connect a separate memory node to each.