User interface configuration

Model the catalog using category hierarchies to avoid having too many items in a category. Too many items in a category make it difficult for users to find an item using the catalog UI components. The catalog UI can also become slow, and handling items can consume significant system resources on the server and client.

If a category contains more than a certain number of items (by default 2000), a simplified UI mode is used, disabling the following features to try to stay responsive.

• Sorting
• Grouping variants into their parent products
• Bundling/packaging items into a bundle/package

In simplified UI mode, a message appears in the catalog listing: This category listing contains too many items. Some features were disabled to improve performance.

To configure the simplified mode threshold, use the SimplifiedCatalogListingThreshold appSetting.

"Commerce": {
  "CatalogOptions": {
    "SimplifiedCatalogListingThreshold": 2000

If not set, a default value of 2000 items per category is used.