In plain language
Arrays hold “many of something” in one place, and automations often need to loop over them one item at a time.
Example
An order payload includes a line_items array with one entry per product, quantity, and price.
Related terms
Loop · JSON · Payload · Batch Processing
Common misconception
An array is not the same as a comma-separated text string; treating it as text can merge, split, or misalign items.
Implementation guidance
Check whether a step outputs a true array or text, loop through line items explicitly, handle empty arrays, and keep related values aligned by position or object.