Update Catalog Itempatch https://a.klaviyo.com/api/catalog-items/{id}Update a catalog item with the given item ID.Rate limits:Burst: 75/sSteady: 750/m Scopes: catalogs:writePath ParamsidstringrequiredThe catalog item ID is a compound ID (string), with format: {integration}:::{catalog}:::{external_id}. Currently, the only supported integration type is $custom, and the only supported catalog is $default.Body Paramsdataobjectrequireddata objectHeadersrevisionstringrequiredDefaults to 2026-01-15API endpoint revision (format: YYYY-MM-DD[.suffix])Responses 200Success 4XXClient Error 5XXServer ErrorUpdated about 6 hours ago