Unable to write the data into KQL database from Notebook

Hi sertajmujawar ,

Thanks for posting in the Microsoft Fabric Community.

Please use the Query URI instead of the Ingestion URI and try again to write data to the KQL database.
You can find it in the Overview section under Database Details.

For reference, here is a similar discussion where this issue was resolved Solved: Writing to KQL db from notebook - Error - Microsoft Fabric Community

Hope this helps. Please reach out for further assistance.

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly and a kudos would be appreciated.

Best Regards,
Vinay.