---
title: "Tutorial - Rack Update Attributes"
slug: "tutorial-rack-update-attributes"
updated: 2026-09-09T14:05:18Z
published: 2026-09-09T14:05:18Z
canonical: "docs.discngine.com/tutorial-rack-update-attributes"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.discngine.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Tutorial - Rack Update Attributes

## Introduction

In this tutorial, you will update the volume of vials in three 96-vial racks using the Rack - Update Attributes workflow.

## Prerequisites

              Required permissions and setup

              

**Sample Processing** role is required to access this workflow.

**Required system configuration:**

- Container Usage: `Inventory`

These should exist by default in the Sample application.

### Items

Containers and locations created from Discngine Sample’s automation will be used:

- 3 racks with 96 vials each (1000 µL – 10 mM), with columns 1 and 12 empty.
- `Paris` location.

## Workflow

### Job Creation

[Create a new job](/public/docs/jobs-overview#create-a-job) and select the `Rack - Update Attributes` workflow.

### Requesting

- Specify Request from **Text**.
- Copy and paste the rack barcodes in the text area: **R00001:R00002:R00003** (rack barcodes can be separated by colons or line breaks).
- Click `Add IDs` to confirm. The racks are listed in the added requests.
- Click `Next`.

### Task Requesting

You will change the usage and volume of these racks. Choose the task to apply to the selected racks:

- Set Target Usage to **Sample**.
- Set Target Volume to **800 µl**.

Leave the other attributes blank; their values will remain unchanged in the racks.

### Sourcing

The Sourcing page will confirm that the requested operations are compatible with the source racks (see the `Sourced` column).

- Click `Next`.

### Storing

The [Storing step](/public/docs/jobs-overview#storing) allows you to assign a location to the items involved in the job.

- By default, the system keeps the current rack locations. Click `Next`.

A message box asks if you want to increment the Thawing Cycle of the racks. Click `No` to continue.

### Pipe & Close

The [Pipe & Close step](/public/docs/jobs-overview#pipe-close) provides a summary page where you can review the job and optionally pipe it to another workflow. For this tutorial, click `Close & Quit` to finish the job.