If the countdown timer does not appear on the product page, check the following in order.
The countdown timer is added as an app block on the product template. On the product page in the theme editor, check that "Countdown Timer" is available under "Add block" or "Add section."
For the steps, see Display countdown timer.
Adding the app block is not enough. In the target rule, check that "Show countdown timer" is enabled in "Before the selling period" or "During the selling period."
The countdown timer appears only on product pages. It does not appear on collections, the home page, or search results. Check the product page for the target product.
The countdown timer appears only before and during the selling period. It is not shown after the selling period. Check the start and end date and time on the rule applied to the product.
Showing the countdown timer requires a paid plan. Check your pricing plan.
For pricing, see About pricing plans.
The countdown timer is not available on vintage themes. Use an Online Store 2.0 theme.
For theme limits, see Features unavailable by theme.
If the above still does not solve the issue, contact us through the contact form.
When you contact us, include the following information.
The store's myshopify.com domain
The theme name
The product name or URL
The items you have already checked