Array Splitter with Parent Field Carry-Over and Count-Verified Regrouping

How it works

1. 1.Manual Trigger starts the run
2. 2.Code node emits four fictional orders
3. 3.Set node defines array field, id field and carry fields
4. 4.Code splits items, carries parent context, skips non-object elements
5. 5.IF separates parents without items
6. 6.Code regroups and computes count_match and missing_item_indexes
7. 7.Set marks empty parents with status=empty_parent
8. 8.Merge appends both paths

Use cases

• Process order lines individually then rebuild orders
• Detect silently lost invoice lines

Requirements

• No credentials required
• Edit the Set node to match your field names

Setup and testing in n8n

1. Import and run manually
2. Check ORD-1001 has count_match=true
3. Check ORD-1004 has count_match=false and missing_item_indexes=[1]
4. Check ORD-1002 and ORD-1003 appear as empty parents
5. Replace sample node with a real source of the same schema

Service Value

Ready-made workflow template for automation delivery and service execution.