When either the Grid or Explore catalogue is enabled you can also set it to be the home page for your site. You can change the home page to the catalogue by configuring the Default home page for users setting via Quick-access menu > Navigation > Navigation settings.
### **Other actions affecting catalogue data**
There are several other actions within Totara which can affect catalogue data, which include, but are not limited to:
- When the catalogue is set to **Report** or **Category**, all learning items are removed immediately
- When a feature is turned on (such as programs in **Advanced settings**), an ad hoc task is scheduled to populate the catalogue with related learning items
- When a feature is turned off, related learning items are removed immediately
- When a learning type is enabled in the catalogue (in the **Contents** tab in catalogue configuration), an ad hoc task is scheduled to populate the catalogue with related learning items
- When a learning type is disabled in the catalogue, related learning items are removed immediately
- When tags are turned off or on (in **Advanced settings**), an ad hoc task is scheduled to refresh the catalogue data of all learning items
- When tags are turned off or on for a learning type (under *Appearance > Manage tags*), an ad hoc task is scheduled to refresh the catalogue data of the related learning items
Sometimes the catalogue search index may need to be rebuilt, for example if the catalogue is accessed before it has been reindexed after a change is made. If you are experiencing issues with the catalogue search, you can rebuild the search index by following these steps:
1. Navigate to the catalogue via **Explore** in the main menu.
2. Click **Configure catalogue**.
3. On the **Contents** tab, untick each of the content types that are currently in use.
4. Tick each content type again (for content types you want to include in the catalogue).
5. Click **Save**.
Then you can check that searching the catalogue works as expected.
## Sorting when multiple languages are enabled
When multiple languages are installed, the sorting dropdown in the catalogue is removed. Instead, sorting is automatically managed, depending on the status of the catalogue. In order of precedence (highest first):
- If the **text search** is active then sorting is by relevance
- If **Featured learning** is configured then featured items will be sorted first, and the secondary sorting is by latest first (the latest featured item will appear first in the results, and the latest non-featured item will appear just after all the featured items)
- Otherwise, sorting is by latest first
The dropdown/alphabetical sorting box can be re-enabled by setting the **catalog_enable_alpha_sorting_with_multiple_languages** config variable - see **config-dist.php** for details.

The Totara Academy has a whole course dedicated to using the [Catalogue](https://totara.community/enrol/index.php?id=902) in Totara. Here you can learn more on how to use the catalogue, see best practice, and give it a go yourself.
Join the [Totara Community](https://totara.community/) for more resources to help you get the most out of Totara.
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