Post-Order Failures in Ecommerce Operations

A post-order failure is any operational breakdown that occurs between the moment a customer clicks "buy" and the moment they successfully use the product. This reference library documents common failure modes in Shopify and ecommerce operations.

Failures describe recurring ways ecommerce operations break after an order is placed. Related content: Scenarios show when these failures appear together.

Wrong item picked

fulfilment

The classic warehouse error.

Symptom

Customer receives incorrect product.

Impact

Return shipping cost, replacement cost, bad CX.

Address validation failure

fulfilment

Shipping labels cannot be generated due to bad data.

Symptom

Carrier rejects label generation due to invalid address.

Impact

Delayed shipment, manual intervention required.

Carrier integration downtime

fulfilment

Inability to generate labels.

Symptom

Cannot generate shipping labels.

Impact

Backlog of unfulfilled orders.

Inventory sync lag

ops

The root cause of overselling.

Symptom

Website shows stock that was just sold on another channel.

Impact

Overselling, cancellations.

Fraud flag false positive

ops

Turning away good money.

Symptom

Legitimate order cancelled automatically.

Impact

Lost revenue, angry customer.

Overselling inventory

orders

Selling stock you do not physically have.

Symptom

Customer orders an item that is out of stock.

Impact

Refunds, lost trust, support tickets.

Payment gateway timeout

orders

Money is taken but the order is not created.

Symptom

Order created but payment status is pending/failed.

Impact

Lost revenue, inventory held unnecessarily.

Discount code abuse

orders

Promotions stacking in unintended ways.

Symptom

Promo code leaked or stacked incorrectly.

Impact

Margin erosion.

Email provider blacklist

support

Transactional emails going to spam.

Symptom

Transactional emails land in spam.

Impact

Customer confusion, increased support volume.

Return label generation failure

support

Friction in the returns process.

Symptom

Customer cannot self-serve return.

Impact

Support ticket volume spike.