Hi @Tom Bixby
For finding keys for SSRS, you can check this document: https://learn.microsoft.com/en-us/sql/reporting-services/install-windows/install-reporting-services?view=sql-server-ver16.
For more details regarding pricing / licensing please contact a Microsoft sales partner or licensing expert.
Call (1-800-426-9400), Monday through Friday, 6:00 AM to 6:00 PM PST to speak directly to Microsoft licensing specialist.
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Best regards,
Aniya