jmudomin
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- Sep 14, 2026
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Running email marketing for a Shopify store (health supplements, MX market). Launched a standard welcome pop-up (10% off, single product store, mobile-only, 2-step form).
The moment we turn it on, metrics collapse: CVR drops significantly, CPA jumps ~55%, and the store loses ~$700/day compared to baseline. Turn the pop-up off → metrics recover within 1-2 days. Turn it back on → same problem again. We've reproduced this pattern twice already.
Welcome flow tracks fine, leads are captured correctly, code delivery works. Checkout is clean, no conflicts with other discounts. Nothing else on the site changed during these windows.
Current pop-up config: 5s delay + 30% scroll + exit intent (OR logic, so 5s wins in practice), mobile only, 2 steps (survey → email opt-in), Klaviyo Forms.
Has anyone seen this exact pattern — pop-up ON = metrics tank, pop-up OFF = recovery? What ended up being the actual cause in your case?
Ad spend is stable, ad creatives unchanged, CTR and CPM steady on Meta side. Problem is 100% on-site.
The moment we turn it on, metrics collapse: CVR drops significantly, CPA jumps ~55%, and the store loses ~$700/day compared to baseline. Turn the pop-up off → metrics recover within 1-2 days. Turn it back on → same problem again. We've reproduced this pattern twice already.
Welcome flow tracks fine, leads are captured correctly, code delivery works. Checkout is clean, no conflicts with other discounts. Nothing else on the site changed during these windows.
Current pop-up config: 5s delay + 30% scroll + exit intent (OR logic, so 5s wins in practice), mobile only, 2 steps (survey → email opt-in), Klaviyo Forms.
Has anyone seen this exact pattern — pop-up ON = metrics tank, pop-up OFF = recovery? What ended up being the actual cause in your case?
Ad spend is stable, ad creatives unchanged, CTR and CPM steady on Meta side. Problem is 100% on-site.
