Fix invalid price errors in a Shopify Facebook catalog

Meta needs a positive sellable price for every catalog item. The parent product can look priced while a single variant remains at zero.

Common causes

• A new variant inherited no price.
• A bulk import used zero or an empty value.
• A product intended as a quote or gift was published as a normal item.

What to check first

1. Inspect every variant price.
2. Confirm the store currency is configured.
3. Check compare-at price separately from the actual price.

How to resolve it

1. Enter a positive price for sellable variants.
2. Unpublish products that are intentionally not for sale.
3. Rescan before waiting on Meta synchronization.