Go to Settings > General > Installation status.

Select "Selected theme" and choose a test theme from the list.

Then click Save.

When you're done testing, you can switch back to None.

Discount Ninja automatically saves your settings and the style aspect of your promotions to the test theme. This is done when saving a promotion or clicking the Save button in the Settings section.

The test theme may be enabled or disabled, depending on what the status of the app was when you made a copy of the theme. When you change the status of the app, it affects both the live and test themes.

To test a theme, find the following section in your Shopify admin: Sales Channel > Online Store > Themes. Then, find the test theme in your Theme library and choose Preview from the Actions menu.

Go to Settings > General > Installation status.

Click "Refresh status" if necessary.

In the installation status table, you'll find an overview of the status of the live and the test theme. You can manage each separetely.

You can optionally update all assets by clicking "Update assets". Note that this will reset the script to the "stable version".

You can then choose to update the script used on the test theme to the "stable" or "latest" version using the "Update script (stable)" and "Update script (latest)" buttons.

Go to Settings > Dynamic Pricing > Theme configuration.

You can set different settings for the live and test themes.