Loop over inputs

Overview

The Loop over inputs node iterates through multiple configured inputs sequentially and emits the current item plus a 1-based index on each run. Commonly paired with Loop controller node to terminate iteration when all inputs have been processed.

Node Information

Property	Value
Category	Data flow
Display Name	Loop over inputs
Internal Name	loopOverInputs

Parameters

Parameter	Type	Default	Description
Input data type	dataTypeChoice	Text	Type for all inputs (Text, Number, JSON object, Content, Segments, Knowledge, Configured Service)
Number of inputs	mergeInputs	3	Number of input connectors (2–10); adds Input 4…N

Input Ports

Port	Type	Accepts	Required	Description
Input 1	Configurable	Based on Input data type	No	First input item
Input 2	Configurable	Based on Input data type	No	Second input item
Input 3	Configurable	Based on Input data type	No	Third input item

Additional inputs (Input 4…N) appear when you increase “Number of inputs”.

Output Ports

Port	Type	Description
Current output	Configurable	The current item in the declared Input data type
Current index	Number	1-based index of the current item

Process Flow Exits

Exit	Condition	Description
Main exit	Always	Continues to downstream nodes; use Loop controller to terminate iteration

How It Works

On first run, counts connected inputs and initializes loop state.
On each run, outputs the next connected input and a 1-based index, then advances the internal counter.
When the counter reaches the input count, marks itself complete and resets to the first item for the next cycle.
Sets a loopControlledNode flag so Loop controller can detect completion across the loop body.