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Arcanum Margin Keep
Check sale prices and discount codes against product costs before they go live. Try a safer promo, watch the Decision ledger, then add Protect for peak sales.
—(0 reviews)· From $29/month. Free trial available.· Launched Sep 14, 2026
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Check sale prices and discount codes against product costs before they go live. Try a safer promo, watch the Decision ledger, then add Protect for peak sales.
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Data last refreshed Oct 20, 2026. Source: Shopify App Store.