Create Catalog Item Relationships Categoriespost https://a.klaviyo.com/api/catalog-items/{id}/relationships/categories/Create a new catalog category relationship for the given item ID.Rate limits:Burst: 75/sSteady: 700/m Scopes: catalogs:writePath ParamsidstringrequiredBody Paramsdataarray of objectsrequireddata*ADD objectHeadersrevisionstringrequiredDefaults to 2023-10-15API endpoint revision (format: YYYY-MM-DD[.suffix])Responses 204Success 4XXClient Error 5XXServer ErrorUpdated over 2 years ago