
Hi @Andy ,
Please take a reference to this article: Create and test an approval workflow with Power Automate. To work with Power Automate in SharePoint server 2019, we need to install on-premises gateways and connect to Power Automate cloud then implement the solutions firstly. See tutorials in this thread: https://learn.microsoft.com/en-us/answers/questions/868845/can-power-automate-work-with-sharepoint-2019.
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