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Field notes / practical guide

Diagnose redirect errors after a Shopify migration

When a migrated URL reaches the wrong page or fails, trace the exact request and destination before changing the whole redirect map.

Capture a reproducible example

Record the original URL, expected destination, observed response and redirect sequence. Include the full path and relevant parameters. Compare the case with a working route to identify whether the defect is isolated or template-wide.

Put it in context

Migration URL mapping

Map source URLs to their destinations and record the redirect acceptance status.

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Check the mapping and destination

Confirm that the old route should redirect and that the intended destination exists. Review platform restrictions using current documentation. Look for chains, loops and overly broad rules that send unrelated pages to one destination.

Correct and retest

Apply the smallest relevant fix and retest the original request from the beginning. Check adjacent routes that may share the rule. Update the migration record with the corrected mapping, evidence and date.

Put the guidance to work

Capture your starting point, assign an owner to the next action, and decide what evidence will confirm that it worked.

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