Collections are the forgotten half of Shopify SEO β they rank for category queries, but most backup and SEO tools only track products, so an overwrite of collection meta titles/descriptions usually has no safety net at all.
If you didn't already have a backup, those old values are gone β Shopify keeps no history.
The steps below recover what you can. To make the next time a 1-click undo instead of hours of CSV work: a daily snapshot of every SEO field. Free to monitor, no card β and SEO Vault only reads your store unless you click restore.
Protect my SEO free β never lose it again βSource: Shopify Community: collection SEO threads
Never lose your SEO to an app again
SEO Vault keeps a daily snapshot of every SEO field on your store β meta titles, descriptions, alt-text, tags, handles (products AND collections) β and emails you the moment something changes in bulk, with the likely app responsible. One click restores yesterday's state, just the SEO fields. Free to monitor and get alerted; $14/mo for 1-click restore.
Protect my SEO β free β