Dataset Error: Not Enough Memory to Complete Operation

IAM  - If you have a premium capacity, you can install the power bi premium capacity metrics app and review the CPU usage. You will get an idea on what datasets are taking too long to refresh. ANd, you can look at optimising those.

Using incremental refresh can be one option. And, changing the refresh times of the datasets to balance out the capacity usage is another option.

https://powerbi.microsoft.com/fr-ca/blog/introducing-power-bi-premium-capacity-metrics-app-as-a-template-app/

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