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# How to set up a box random by group

## Overview

Random by group allows you to set one percentage per group, then fill each group with the products you want. When a buyer purchases the box, the system does two things: first, it rolls to see which group they land in based on your configured odds, then it randomly picks one item from within that group.

**A few things to know before you start:**

* Group odds you set never change as items are pulled — if you say Legendary is 5%, it stays 5% for every buyer.
* Default logic: The system first randomizes the winning group, then selects an item within that group. All items in the group have **equal probability**. Pulled items **can appear again in future pulls.**

|| If you want items to be pulled uniquely (removed from the group after being pulled) and automatically deactivate the box when any group becomes empty, please contact us for further support.

## Step by Step: Setting Up Your Group Random Box
### Step 1: Create a new box and choose Group Random

Go to the Manage box page, click **Create new Single box**. When prompted to choose a randomization method, select **"Random by group(s)"**.

![](https://storage.crisp.chat/users/helpdesk/website/-/d/0/0/7/d007370f69912800/59b95f07-34af-41d1-baaa-ee5ef6_1km5xmx.png)

### Step 2: Create your groups

This is where you define how your box is structured. Think of each group as a rarity tier.  
Click **"+ Add tier"** to add a new group, and fill in the following:

* **Group name** — Give it a clear, buyer-friendly name
* **Chance (%)** — Enter the probability that a buyer will land in this group.
* **Colour** (optional) — Pick a colour label to visually distinguish groups in your dashboard.

Repeat this for each tier you want. You can add as many groups as you need.

**Important:** The percentages across all groups must add up to exactly 100%. Mysbox shows a running total as you type, and will prevent you from publishing until the sum is exactly right.

### Step 3: Add items to each group

Once your groups are created, you need to fill each one with products. Click **"Browse"** on a group to open the item selection modal. You have two ways to add items:

* **Select specific products**

Search for individual products from your Shopify inventory and check the ones you want. If a product has multiple variants, each variant appears as its own row so you can include exactly the ones you want. When you're done, click **"Done"** to add them to the group.

* **Select a Shopify collection**

If you have a large inventory, adding them one by one isn't practical. Instead, search for and select a Shopify collection. All in-stock variants in that collection will be imported into the group at once.

![](https://storage.crisp.chat/users/helpdesk/website/-/7/c/1/4/7c14bf4e15b59c00/e5f789ba-04bb-4de8-ad0a-1c9e51_sy4s22.png)

||| If you update any data of mystery product and collections after publishing, please deactivate box and sync data to prevent potential errors.

![](https://storage.crisp.chat/users/helpdesk/website/-/8/6/0/5/8605f011680db800/6d0f5368-c5ca-4ac2-aa2b-23eebb_t4mrw7.png)

### Step 4: Review and publish

Before you can publish, make sure that:

* All group percentages add up to exactly 100%
* Every group has at least one item in it

Then hit **Save**.

![](https://storage.crisp.chat/users/helpdesk/website/-/a/e/f/e/aefeeb6492f37000/1924f5c2-a17a-454d-b8cd-a19cf3_196gyjw.png)

Once published, your product page will show buyers a breakdown of each group — the name, the percentage chance, and which items are in each group. You can customize this widget on Style setting page.

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| Hopefully this article has helped you. Things change all the time, so if you run into issues, please don't hesitate to share them with us at contact@qikifysupport.on.crisp.email or use the in-app live chat. We're happy to lend a hand 🤩