Is there a guarantee on the fix?

Yes. If the same Liquid bug comes back within 14 days of going live, we fix it again at no charge. Because we root-cause the real issue, the nil object, the malformed {% schema %}, the renamed snippet, rather than patching the symptom, recurrences are rare. For deeper themes, the part of our Shopify bug-fixing service that covers ongoing work is the retainer tier. This page is a spoke of our emergency e-commerce bug fixing service.