There are certain scenarios which can be implemented using either Dynamics Workflow or Microsoft Flow. Following are a few points we can consider when deciding.
If a scenario can be implemented within Dynamics 365 using Workflow, then Workflow is the better choice. This is because we can easily manage and monitor it from within CRM, through System Jobs. For managing and monitoring a flow, we need to go outside CRM and do the same from within Flow's portal.
Workflow can run both synchronously and asynchronously. Workflow will trigger immediately when conditions are met. So, in scenarios where we want immediate action to be taken, Workflow is a better choice. Moreover, Workflow is solution-aware, so it can move easily from one environment to another.
Microsoft Flow is a better fit in scenarios where we want to seamlessly integrate with third-party applications and services such as Twitter, Facebook, Yammer, and so on. To implement this within Workflow...