This article covers
Can I change the 'Qty' label in the customer checkout portal to 'Days'?
Is it possible to change the word ‘Qty’ to ‘Employees’ on checkout?
It is not possible to change the "Quantity" text on the checkout page/portal.
The unit measure for a plan cannot be edited. However, you can specify the unit measure for unit-based addons.
Preview page - Portal
Unit measure - Addon
You can customize other labels on the checkout or portal pages. Example, descriptions, label name change, buttons or fields
To do this, Go to Chargebee Dashboard,
> Configure Chargebee
> Checkout & Self Service Portal
Related articles and Documentation