Hi @Kevin Tahon · You can check service health status at https://status.azure.com/en-us/status which doesn't show any error. I tested user flow in my tenant and it is executing successfully. This could be due to any network changes at your end. You can try running user flow from a machine in different network e.g., Azure VM to confirm the same.
-----------------------------------------------------------------------------------------------------------
Please "Accept the answer" if the information helped you. This will help us and others in the community as well.