Order cancellations on Shopify often happen due to fraud detection systems flagging unusual activity, especially with VPNs, proxies, and anti-detection tools. These security measures can trigger Shopify’s protection filters. To reduce cancellations, try using a stable, consistent IP without proxies or VPNs, avoid frequent location changes, and ensure payment info matches your profile. Also, avoid tools that alter device fingerprints too aggressively. Building a trusted shopping profile over time can help. If issues persist, consider reaching out to Shopify support or the merchant directly for guidance.