Auto-labeling to Document Property MSIP

Hello @Catarina Machado,

Thank you for reaching out to Microsoft Q&A.

Based on your description, sorry to say that this scenario fall outside the scope of my direct support capabilities and this forum scope, I just can done my best to guide you toward a potential solution bellow, you can consider and I hope it will helpful for you someway. 

If you require further assistance or confirmation, please refer to raise a ticket with the Purview team as outlined in this thread: Auto labelling with InformationProtectionLabelId - Microsoft Q&A

1. Create a Managed Property in the New Tenant

• Go to SharePoint Admin Center → More Features → Search → Manage Search Schema.
  

• Create a Crawled Property if it doesn’t exist.
• Map it to a Managed Property that will be used in the auto-labeling policy.
• Ensure the managed property is Queryable and Retrievable.

2. Re-index the Content

• Trigger a re-crawl of the content so the new property is indexed.
• Test by searching for documents containing the value "Footer" in the new attribute.

3. Create an Auto-labeling Policy

• Go to Microsoft Purview Portal 

In Setting > Information Protection make sure you turn this on:

• Go to Solution > Information Protection > Auto-labeling policies > Create a new policy targeting the managed property with the value "Footer".
• Run the policy in simulation mode first to validate results before applying it.

For more details, please refer to this reference:

Automatically apply a sensitivity label to Microsoft 365 data

Apply sensitivity labels to your data in Microsoft Purview Data Map (preview) | Microsoft Learn

Sensitivity labels are automatically applied or recommended for your files and emails in Office - Microsoft Support

And if you want to further clearly, you can consider this video:

Create Sensitivity Labels in Microsoft Purview | Full Tutorial - YouTube

(Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make sure that you completely understand the risk before retrieving any suggestions from the above link)

Again, please note that if you require further assistance or confirmation I strongly recommend you to raise a ticket with the Purview team as outlined in this thread: Auto labelling with InformationProtectionLabelId - Microsoft Q&A:

Raise ticket directly to them, our technical team can guide you directly step by step and it will more easy for you to follow your target!

Thank you so much for your understand and cooperations!

Best Regards.

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment". 

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.