Hi MrFlinstone,
Thank you for posting query in Microsoft Q&A Platform.> From below documentation, under "Applies To" section, I can see that, its applicable only for Azure data factory". Not applicable for "Azure Synapse Analytics".
https://learn.microsoft.com/en-us/azure/data-factory/data-flow-reserved-capacity-overview
Hope this helps. Please let me know if any further queries.
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