Cannot save a Dynamic per-recipient subscription for a paginated report.

Hi spehe​,
Thanks for reaching out to the Microsoft Fabric Community forum. and thanks to ShivekMaharaj​ & tayloramy​ for sharing valuable insights.

I reviewed Microsoft's documentation for Dynamic per-recipient subscriptions for paginated reports. Based on the documented prerequisites, your configuration appears to align with the requirements.

Most importantly, Microsoft explicitly lists Microsoft Fabric trial as a supported capacity for paginated reports with dynamic per-recipient subscriptions.

The documentation also requires:
•    Build permission to a semantic model containing recipient email addresses and the parameter values.
•    Contributor, Member, or Admin access to the workspace.
•    Recipient data containing email addresses and the parameters assigned to each recipient.

It further explains that the recipient semantic model is used to map recipients to their parameters, with email addresses being the key recipient data used for this mapping.

Given that Fabric trial is explicitly listed as a supported capacity, the reported error may require further investigation. I would first verify the remaining configuration details against the documented prerequisites before drawing any conclusion about the capacity or licensing requirement.

For more details, please refer to the below official Microsoft documentation:

Create a dynamic subscription for a paginated report - Power BI | Microsoft Learn

I hope this helps. Please feel free to reach out if you have any further questions.
Thank you.