Tax values formatted incorrectly

Tax attribute syntax is invalid; expected country:region:rate:tax_ship.

Pinterest Catalogs flags shipping issues when the feed-declared shipping cost doesn't match the actual cost on the landing page, when shipping settings are missing for declared destinations, or when invalid shipping_weight format trips validation.

1. Set up account-level shipping settings in Pinterest Business → Catalogs → Data sources.
2. If you offer flat-rate shipping, you can omit per-product shipping. Otherwise submit shipping cost in the feed for every applicable product.
3. Make sure feed shipping cost = checkout shipping cost. Buyers pay what your feed says, not what the cart calculates.
4. Use weight-based or zone-based rules for accurate cost calculation.

• Forgetting to set shipping for new countries when expanding internationally
• Free-shipping promotions that aren't reflected in the feed — appears as price mismatch