5 common causes
- Cache (customer sees old price)
- Cart Transform fee not applying
- Compare-at-price higher than price (Shopify may glitch display)
- Discount code auto-applying
- Multi-currency conversion
Diagnosis
- Clear cache, test in incognito
- Check variant price in admin (source of truth)
- Check Cart Transform rules
- Disable auto-discount codes temporarily
Cart Transform debug
Personalizer app dashboard → Cart Transform → recent runs → error log. Check fee amount + variant reference.
Multi-currency
Currency conversion applies to base price. Cart Transform fees convert too. Verify with test order in each currency.
Frequently asked questions
Why is my Shopify variant price wrong?
5 causes — cache, Cart Transform bug, compare-at glitch, auto-discount, currency conversion.
Product page vs cart price mismatch?
Cart Transform fee likely. Check personalizer app dashboard.
Compare-at-price bug?
Ensure compare-at > price. If not, remove or set correctly.
Discount auto-applying?
Check active discount codes + Automatic discounts (Plus). Disable to test.
How to test currency conversion?
Switch store currency in Markets settings. Verify base + fees convert.
Cart Transform not applying fee?
Personalizer app dashboard → recent runs → error log. Debug rule config.
Rounding errors on fees?
Configure rounding rule (up, down, nearest). Prevents fractional-cent display.
Price sync with POD partner?
POD price != Shopify retail. Verify POD variant cost is set correctly for margin.
Related reading
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