Reindex Library
You can reindex the published responses in the library in the event of any unexpected event on the library management system or for other reasons as well.
Go to App Launcher, search and select LFS Configuration, go to the Library Config Setting tab, and click the Reindex Library button.
The Salesforce Administrator must set the Enable Library Reindexing to true in Custom Metadata Types > Loopio for Salesforce Configuration to display the Reindex Library button on the LFS Configuration > Library Config Setting tab. For more information, see Loopio for Salesforce Configuration.
The user who performs the Reindex Library must have Publish access.
Only Responses with the Published status are considered for Reindexing.

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Refer to the following stages with the information of Reindexing process.
Stage 1: Initiate
Refer to the following points when you initiate the Reindexing by clicking the Reindex Library button.
A new Response Operation Record (LFS Tables > Object Table > Response Operation) is created with the Operation Status as Pending.
The Indexing Status of the Responses with Status = Published is updated to Not Reindexed.

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Stage 2: In Progress
Refer to the following points when the Reindexing is in progress:
The newly created response operation record's status remains as Pending.
The Indexing Status of the Responses with Status = Published is updated to In Progress.
When you click the Reindex Library button again, the following message appears: ”Reindexing is in progress. <first name> <last name> started reindexing on <date time> and x% of it is completed.”
You can see the “Reindexing is in progress. Please try again later.” message when you:
Retrieve answer using Project and Table action.
Access Library from the Library Search and View Questions page.
Try to publish a new response from the record page.
Try to publish multiple responses using table action on the Response Library tab.

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Stage 3: Complete
Refer to the following points when the Reindexing is completed:
The newly created response operation record's status gets updated as Completed.
The Indexing Status of the Responses with Status = Published is updated to Completed.
You can access the Library from the Library Search and View Questions page, retrieve answers, and publish new response(s).
Reindexing will update Existing Published Response records with new Knowledge Base Answer ID
Last Modified By field for the response is updated with the user who performed the Reindexing.

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Notifications
When the Reindexing process is finished and the Response Operation Status is changed to Completed, the system will send an Email and a Salesforce Push notification.
The Salesforce Administrator can enable or disable the notification channel from the Custom Metadata Types > Notification Flow Channel > Response Reindex Completion Email (for email notification) and Response Reindex Completion Notification (for lightning notification).
Email Notification:

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Salesforce Push Notification:

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