Adding service principal to personal gateway

Hi jaryszek  ,
Thanks for reaching out to the Microsoft fabric community forum.

The Personal Gateway is designed for interactive and personal use by a specific user, and it is tied directly to that user's identity. It does not support service principals. As a result, service principals cannot be added as administrators or users within a Personal Gateway configuration.

There is another type called Virtual network data gateway which allows multiple users to connect to multiple data sources secured using virtual networks. No installation is required because it's a Microsoft managed service. This gateway is well-suited to complex scenarios where multiple people access multiple data sources.
Please find more about it here: What is a virtual network (VNet) data gateway | Microsoft Learn
and check if it meets your specific requirement.

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Thank you