Hi   @DharmendraD16 ,

The option you are looking for is no longer called “Vector Search Preview.” Mosaic AI Vector Search became generally available in May 2024, so the core feature no longer requires enabling a preview. On June 1, 2026, Databricks also renamed Vector Search to Databricks AI Search.

In the current Azure Databricks interface, open:

Compute → AI Search → Create endpoint

The AI Search tab is displayed only when the workspace meets the required prerequisites.

Please verify the following:

1. Unity Catalog is enabled for the workspace.
   You should see catalogs under Catalog in the workspace sidebar. Workspaces created after November 9, 2023 normally have Unity Catalog enabled automatically; older workspaces might need to be upgraded or assigned to a Unity Catalog metastore.
2. The workspace is in a region that supports AI Search.
   AI Search is not available in every Azure region. Check your workspace region against the Azure Databricks feature-region availability table.
3. Serverless services are available.
   AI Search requires serverless compute. It is generally enabled automatically for Unity Catalog workspaces in supported regions.
4. You have the required Databricks permissions.
   You need permission to create or use an AI Search endpoint and CREATE TABLE on the Unity Catalog schema where the index will be created. For a standard endpoint, the source Delta table must also have Change Data Feed enabled.

Databricks AI Search - Azure Databricks | Microsoft Learn

And here are some prerequisite that you must meet:If my answer was helpful, please consider marking it as accepted solution