Set Node Parameters

The Set node (action_set, custom_modules__set) sets or modifies variables (constants) for later use in the scenario. Values can be static, from placeholders, or from mathematical expressions. In Node Inspector (right panel) configuration is set as a JSON object.

Format

  • Key — variable name (e.g., param1, counter, client_name).
  • Value — text, placeholder, or expression:
    • Text — string in quotes.
    • Placeholder — {{variable_name}} (value from previous nodes).
    • Mathematical expression — e.g., {{param1}}+2, {{count}}*10.

Examples

Static value:

{
  "greeting": "Welcome!",
  "max_retries": 3
}

With placeholder:

{
  "client_name": "{{outputVariable}}",
  "summary": "Client {{client_name}} selected category {{category}}"
}

Mathematical expression:

{
  "counter": "{{counter}}+1",
  "total": "{{price}}*{{quantity}}"
}

Placeholders

  • Variables from Wait for Input, Message with Buttons, Slider nodes, etc. are supported.
  • Syntax: {{outputVariable}} or {{variable_name}}.
  • Variables set in Set are available in subsequent scenario nodes.

Tip: Set does not send messages to the client — it only changes the scenario execution context.