# Array aggregator ; how to use it for grouping the flatten data and sorting within the group?
**URL:** https://community.make.com/t/array-aggregator-how-to-use-it-for-grouping-the-flatten-data-and-sorting-within-the-group/89435
**Category:** Questions
**Tags:** open-ai
**Created:** [August 12, 2025, 4:12pm UTC](https://community.make.com/t/array-aggregator-how-to-use-it-for-grouping-the-flatten-data-and-sorting-within-the-group/89435 "2025-08-12T16:12:33Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@abhinav\_srivastava](https://community.make.com/u/abhinav_srivastava)
#### Post date: [August 12, 2025, 4:12pm UTC](https://community.make.com/t/array-aggregator-how-to-use-it-for-grouping-the-flatten-data-and-sorting-within-the-group/89435/1 "2025-08-12T16:12:33Z")
I have input array data to aggregator is this:
Name (A)
Ms Rupam Srivastava
- Age (B)
- Report Date (C)
- Category (D)
- Test (E)
- Value (F)
- Lower Ref (G)
- Upper Ref (H)
- Unit (I)
- Status (J)
- Bundle order position
- Total number of bundles
---
### Author:  [@abhinav\_srivastava](https://community.make.com/u/abhinav_srivastava)
#### Post date: [August 12, 2025, 4:20pm UTC](https://community.make.com/t/array-aggregator-how-to-use-it-for-grouping-the-flatten-data-and-sorting-within-the-group/89435/3 "2025-08-12T16:20:11Z")
Chatgpt is suggesting this but I am not able to follow it:
Tools → Array aggregator (group by Test, sort, and compute “latest”)
This is the key step. We’ll build a chart‑ready structure **and** compute each test’s **latest** point to decide if it’s out of range.
- **Source module:** the **Iterator** (from Step 2)
- **Group by keys:**
- **Order inside each group:**
`Report Date` **ascending** , but insert the normalization so the order is correct:
- **Aggregated top‑level fields per group (choose “Aggregate to” accordingly):**
- **Aggregated array (call it `series`) item fields:**
>
---
### Author:  [@samliew](https://community.make.com/u/samliew)
#### Post date: [August 12, 2025, 4:21pm UTC](https://community.make.com/t/array-aggregator-how-to-use-it-for-grouping-the-flatten-data-and-sorting-within-the-group/89435/4 "2025-08-12T16:21:57Z")
Welcome to the Make community!
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---
### Author:  [@Make\_Bot](https://community.make.com/u/Make_Bot)
#### Post date: [November 10, 2025, 5:27pm UTC](https://community.make.com/t/array-aggregator-how-to-use-it-for-grouping-the-flatten-data-and-sorting-within-the-group/89435/5 "2025-11-10T17:27:07Z")