Calculator node
Calculator computes a total from upstream values.
Configure
Choose fixed, tiered, expression, distance, or custom-function pricing. Set currency, rounding, adjustments, and the result variable or invoice template. Ensure the node has a user-flow input and that its payment output reaches Quote.
Diagnose it
Zero-priced tiers, missing inputs, or a payment edge that bypasses the user path produce warnings even when the calculator is visually connected.