WooCommerce updates break coupon checkout
Each WooCommerce update breaks the coupon plugin with fatal errors and session warnings at checkout.
Tier II · Emerging Problems that are still building up.
4 public reports · first reported 16 July 2025 · last reported 3 October 2025
What's going wrong
Several site owners report that after WooCommerce or plugin updates, the coupon plugin throws fatal errors on checkout, session warnings, or stops counting automatic coupons in the cart.
AI-assisted: written with the help of AI from the reports. The idea report has the full summary.
In the idea report
- The full summary.
- The products the 4 reports are about, and how many came each month.
- Related problems.
No business has been found with this problem yet, so the report has no contacts. All sales are final — no refunds. Pricing.