Hi Artem_89, could you please activate verbose level logging in your browser's JS console and show us the output?

You can use the following piece of code: private static final String ECO_FRIENDLY_ATTRIBUTE = "eco_friendly"; @PostConstruct public void initModel() { productRetriever = productTeaser.getProductRetriever(); if (productRetriever != null) { productRetriever.extendProductQueryWith(p -> p .createdAt() .addCustomSimpleField(ECO_FRIENDLY_ATTRIBUTE) ); } }