Purchase value differs from the order total

The destination recorded a different value than the Shopify order.

Why it matters

Revenue and ROAS reporting, and value-based bidding, use this number directly.

How to fix it

1. Decide what value you report: order total, subtotal, or total minus shipping and tax. TagGap uses the basis set in Settings.
2. Check that the value is sent in the order currency, with the currency parameter set, and is not rounded or converted twice.
3. Look for discounts, gift cards or shipping being added or removed by one integration but not another.
4. If you changed the value basis on purpose, update it in TagGap Settings so the comparison uses the same basis.

Background reading

• Shopify orders don’t match GA4: how to find the exact missing orders
• How much discrepancy between Shopify, GA4 and Meta is normal?

After a fix, TagGap confirms it on the next comparison run. Questions: support@taggap.com.