post https://dy-api.com/v2/feeds//bulk
Usually, a product feed is updated periodically. However, if you have a large number of products in your product feed, each update can take some time. To avoid this, you can use an API to update only the changes in your feed (remove a specific item, add a few items, change item properties, and so on), and make changes to the feed more quickly.
Support site article: Creating and Syncing a Product Feed Using APIs