StoreHippo provides multiple ways to add or update multiple products.
You can use Product Import to update multiple products at the same time using a simple CSV file.
You can use StoreHippo APIs to add or update products programmatically.
If you want to delete or publish/unpublish multiple products, then you can do that from the admin panel. Use the filters on the Products section and perform the bulk operation on selected products.
Go to Products > Products section in the StoreHippo Admin Panel.
Select the products which you want to delete or publish/unpublish.
Click on the ellipsis button on the header bar and select the desired option from the drop-down.