Running a flow
Each time a flow runs, it creates an execution. The flow's details screen shows two cards for this: Statistics and Executions.
Executions
The Executions card lists the flow's runs, each with a status and the time it started. A new run can be started for the flow, and runs also happen automatically according to how the flow is set up.
Open an execution to follow what it did stage by stage.
Manual approval
If a stage has manual approval turned on (see Stages), the execution pauses there and waits for a person. A paused run shows an approve action in the executions list — approving it lets the flow continue to the next stage. This is how you keep a person in the loop before, say, invoices are distributed.
Statistics
The Statistics card summarises the flow's activity (such as how many invoices are at each step), so you can see at a glance how a flow is performing without opening every run.
While building or changing a flow, keep it Enabled off (or test on a small data set) until you've confirmed the executions produce the invoices you expect. Use manual approval on the distribution stage so nothing is sent before you've checked it.