Not getting updated brand and sku list thorugh api calls

I was trying to import a number of products into VTEX. Some of them are under the same brand. So I need to import the brand only once in such cases. I was trying to get all the brands added to the VTEX using the GET brand list API. But it isn’t showing the updated list. All brands on the admin side of VTEX are not coming in the API response. The same happened in the “GET SKU list by product Id” API call. Is there any solution to fix this issue?