JewelClues review for Google & YouTube

The app is easy to use, but it ended up costing us significant advertising performance. Our Google Merchant Center feed repeatedly broke and was automatically repopulated. Then, around June 2026, the app migrated our product IDs from the localized `shopify_US_` format to the new `shopify_ZZ_` format. Since Google Ads treats different product IDs as entirely new products, this effectively reset years of product-level performance history and Smart Bidding signals. Google Ads Support confirmed that there is no automatic mapping between the old and new product IDs, so historical bidding signals and product-level performance cannot be transferred after the IDs change. They also advised ensuring country markets and shipping settings were correctly configured, as this should allow localized IDs (such as `shopify_US_`) to be generated. We verified our market configuration and followed their recommendations, but the app continued generating only `shopify_ZZ_` IDs, with no option to manually restore the original format. For merchants relying on Performance Max or Shopping campaigns, this is a serious issue because stable product IDs are critical for maintaining optimization history. The app itself is straightforward to use, but this change cost us considerable time, advertising budget, and campaign performance, with no practical way to recover the historical product IDs.