If your store has multi-currency enabled, 1-click AfterSell offers will only show if the order was made in your "store currency".

For example, if your store currency is CAD but the order was in USD, the offer will not show.
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This is because of Shopify's Post-Purchase Limitations, which can read read about in our "Why Is My 1-Click Offer Not Showing?" article.

You can alternatively read Shopify's Documentation on it if you'd prefer!