Is Null

With the Is Null action node, you can verify whether a variable exists (i.e. is it a real value or a NULL value) and then define what action follows - either route the user to a new step in the workflow or trigger a new workflow.

This can be used for example to verify whether an expected response parameter from an API is available in the response received.

This node is typically used after an HTTP Call node to check whether a variable exists within the returned payload.

Setup of an Is Null node
Example flow containing Is Null node