Set up a countdown timer <> Boutique
Add a countdown (promotion) timer as a banner.
Please add the Banner section to the page, remove the default "Full width" block, and add the "Countdown timer" instead. Enter this block and set up the date when the promotion ends.

Add a promo timer to the individual product.
Step 1: Create a product metafield
Navigate to the Admin -> Settings -> Metafields and metaobjects -> Products, click on "Add definition".

Create a metafield with the following parameters:
| Name: | Any preferred name (e.g., Promo timer) |
| Key: | custom.promo_timer_date |
| Type: | One / Date and Time |

Step 2: Add the time to the metafield.
Navigate to the Admin panel -> Products -> [product], scroll down to the Metafields section, and set the date when the promotion ends.

Step 3: Add a countdown timer to the product template
Go to the theme editor -> Product template, click the "Add block", and add the Countdown timer block.

If you have a lot of products with a promotion, you can add the promotion end date to the metafield for all products at once, in one place.
To do this, select the necessary products in the admin panel and click “Bulk edit.”
In the window that opens, click “Columns” and find the name of the metafield that stores the promotion end date. Check it - this will add a new column to the table.
Then, enter the date for one product and drag it down to apply it to all products in the list.
