I use the createOrReplaceInventoryItemGroup API to modify the main image or description of the item, but the online page doesn't change.
But when I use the bulkCreateOrReplaceInventoryItem API to modify the item's title or product image, the online page will change. Only if there is a change in the item will the online page be affected.
I want to know if only the specific fields is modified，or requesting the bulkCreateOrReplaceInventoryItem will affect the online page. Can I just modify the main image or aspects of item group?