After you registered your account with Admitad you can start importing products to your store and switch the products from selling on Shopify to referring the visitor to Aliexpress (the visitor purchases the product on Aliexpress and you get affiliate commissions from Admitad)
2. Go to “Import list”, choose the product you want to refer to be purchased from Aliexpress, and select “Affiliate” from the “Business model” column.
To if your affiliate link is ok, click the "check link" and check if it's active.
Note: This imported product will have a "View on Aliexpress" button instead of an "Add to cart". When a visitor clicks this button, he will be redirected to Aliexpress with your Admitad affiliate ID. If the visitor purchases the item you will earn a commission.