Where do I find my booster ID? (Essential Free Shipping Upsell app)

Each booster has a Booster ID. You need it when you place a booster with Custom position.

To find it, open the booster and select the Placement and Targeting tab. Under Booster ID, click the clipboard icon to copy it. For a new booster, save or publish it first, because the ID is generated when the booster is created. Updating a booster keeps its ID.

Under Custom position, you can use Reposition with app blocks or copy the generated code snippet. The snippet includes the ID in the element. The app block uses the ID entered in its block setting.