WholesaleX let’s you set maximum order quantity. Here’s how:
Installing WholesaleX
Go to the “Plugins” section on your WordPress dashboard.

- Then click on “Add New.”
- On the right search panel, type “WholesaleX.”
- You should now see the WholesaleX plugin.
- Click on “Install.”
- Then you can click on the highlighted “Activate” button.
Setting Maximum Order Quantity
- First, you need to go to WholesaleX→Dynamic Rules.

- Click the “Create Dynamic Rule” button to create a new rule.

- Now select the rule type. Pick the “maximum order quantity” option from the dropdown.

- Choose “All roles” if you want to set a maximum order quantity for all your customers or “specific roles” to set it for particular roles.

- Now, in the Product Filter, you can select all or specific products, categories, and even more to which you want to add the maximum order quantity.

- Insert your maximum limit in the “maximum order quantity” box.

Now click save to successfully set the maximum order quantity for your WooCommerce store.
Video
Here’s a video to guide you through the process: