Troubleshooting guide
Checkout Repair: Diagnostic Guide
Checkout Repair: Diagnostic Guide organizes the decisions that matter for online stores with broken carts, failed payments, shipping errors, slow checkout, or mobile purchase friction: the current workflow, ownership, implementation choices, rollout risk, and acceptance evidence.
Working artifact
Checkout Repair integration-boundary map
Use the boundary map to show what crosses systems, where it can fail, and how the result will be reconciled.
| Boundary | Information moving | Failure to test |
|---|---|---|
| WooCommerce and custom commerce systems | Cart and checkout failure diagnosis | Payments fail without a useful explanation |
| Payment-provider diagnostics | Payment gateway and webhook repair | Inventory allows or blocks the wrong purchases |
| Order, stock, and fulfillment logic | Shipping, tax, and inventory troubleshooting | Shipping choices disappear or miscalculate |
Record the symptom before changing it
Payments fail without a useful explanation. Confirm who encounters it, where it occurs, and what changed before it appeared. Then distinguish the visible symptom from dependencies such as wooCommerce and custom commerce systems.
- Save exact error text
- Record the last known working date
- List recent code, content, vendor, DNS, or account changes
Separate reachability, data, and behavior
For E-Commerce Repair & Checkout Optimization, confirm account ownership, current exports or backups, recovery options, and recent changes before touching production. Preserve exact errors and timestamps that may disappear after a restart or update.
- Reachability check for order, stock, and fulfillment logic
- Data or content check related to cart and checkout failure diagnosis
- Behavior check for payment gateway and webhook repair
Use stop conditions
Frame the first scope around cart and checkout failure diagnosis and one observable acceptance journey. Treat payment gateway and webhook repair as a later phase unless the evidence shows it is a true dependency.
- No confirmed backup
- Unknown production ownership
- Security or payment data may be involved
Verify the repair in the real journey
Repair fits when the core remains sound. Extension fits when the boundary around wooCommerce and custom commerce systems is understood. Replacement fits when ownership, architecture, or operating risk prevents a responsible change.
- Cart and checkout failure diagnosis
- Shipping, tax, and inventory troubleshooting
- Browser and device QA