I’ve created enough Power Automate routines to know that they all eventually fail for some reason or other and it’s important to add resiliency to your production Flows where you can. This can include:
Using service-accounts for your connections. This removes the impact of account actions like password changes or user deactivations.
Adding co-owners to the Flow. This increases the options for support and continuity if the primary owner is not available.
Handling errors whenever possible. This allows for known issues with the data, actions and other conditions that are acceptable within the business process that can be predictably dealt with in the Flow.