How to Manage Bulk Updates and Deletions in an Inventory Catalog
With bulk updates and deletions you can update or delete multiple SKUs in the inventory catalog in a single operation. A bulk update is not necessarily faster than if you updated the items individually. However, it is more convenient for you.
The catalog system performs updates on SKU collections that are returned by methods such as the GetSkus method. The catalog system also supports updates to a collection of SKUs that match an expression. For example, you can search for all SKUs with the Preorderable property set to true and then change the property to false for all items.
The bulk update operation will always overwrite existing information in a catalog, including any changes made by another concurrent user.
When saving a dataset, the optimistic concurrency rules apply, and the API provides a bypassConcurrencyCheck API. Other bulk updates do not provide any optimistic concurrency.