Prep data for AI - AI instructions ignored by Copilot, no Copilot indexing option in the settings

Hi TomaszKoc  ,
This looks like a rollout gap. The Indexingoption isn’t available in all tenants yet, so seeing"IndexingEnabled": false is expected. Until indexing is enabled, Copilot may apply instructions inconsistently.

Since the old DAX option was retired, the new indexing pipeline is required. Best step is to confirm with Microsoft support if your tenant is included in the rollout. Once indexing is enabled, the toggle will appear and instructions should work reliably.

Please find the attached file for your reference:
Prepare Your Data for AI (preview) - Power BI | Microsoft Learn

Regards,
Community Support Team.

Hi TomaszKoc,
I hope the information provided above assists you in resolving the issue. If you have any additional questions or concerns, please do not hesitate to contact us. We are here to support you and will be happy to help with any further assistance you may need.

Regards,
Community Support Team.