Configure a Set Variable node
Writes a fixed value, or an expression that references another variable, into a session variable. An empty name or expression blocks activation.
The node produces a value that later steps read. In the value expression you can reference existing variables such as {{__last_input}}. You can join them with plain text. Keep the variable name identical everywhere, because one typo makes the next step read an empty value.
Before you start
- A later step that reads the value: a condition, a switch or a message
- Both the variable name and the value expression filled in
- The referenced variable already written at that point
Step by step
These screens sit inside the Intent AI section. Sign in, open Intent AI; the menu names below are in that section's left menu.
Drag the node onto the canvas
Take the Set Variable node from the tools group in the palette.
Connect it to the previous step
The node does not run without that connection.
Write the variable name
Give it a plain name, such as musteri_tipi.
Enter the value expression
Put in a fixed text or a reference like {{__last_input}}.
Read the value in the test window
Save, open the debug column with the test button and check the variables section.
Result checkIf it did not work
Check these
- An empty variable name gives the node a red ring and the flow will not activate.
- An empty value expression draws only an orange warning, yet the server still refuses activation.
- A blank entry means the variable you referenced was not written yet. Compare the step order and the spelling.
- System variables are ready at every step and need no assignment of their own.
Does this step look different in your panel?
We can review the screen and exact error text together.
This guide was checked against the product UI and code inventory on 29 August 2026.
