Error while saving a dashboard having a Tile with a simple table

Hi mshafieluru ,

The error you’re encountering typically occurs when the dashboard is unable to properly resolve its data source reference (scopeId) during the save operation.

Since the issue also persists while downloading the dashboard, this points more towards a backend/service issue or invalid dashboard metadata, rather than a configuration or capacity-related problem.

Suggested steps to try:

Recreate the dashboard and the tile from scratch

Ensure the KQL database is explicitly selected while creating the tile

Validate the behavior using a very simple query

Best Regards, 
Community Support Team

The issue got resolved after removing the default eventhouse "datasource" that gets created while creating the dashboard and recreating it.